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NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_4911 | image | textbook_images/technology_and_science_23108.png | FIGURE 1.2 | 0.315989 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | DQ_002551 | image | abc_question_images/earth_eclipses_11654.png | earth_eclipses_11654.png | 0.266751 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | DQ_002580 | image | question_images/earth_eclipses_1668.png | earth_eclipses_1668.png | 0.266404 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_0492 | image | textbook_images/telescopes_20338.png | FIGURE 23.4 Refracting telescopes can be very large. | 0.264696 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | DQ_002544 | image | abc_question_images/earth_eclipses_10696.png | earth_eclipses_10696.png | 0.261171 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | DQ_011201 | image | question_images/parts_telescope_7287.png | parts_telescope_7287.png | 0.259464 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | DQ_011231 | image | question_images/parts_telescope_8155.png | parts_telescope_8155.png | 0.258295 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | DQ_002631 | image | question_images/earth_eclipses_695.png | earth_eclipses_695.png | 0.257722 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | DQ_002571 | image | question_images/earth_eclipses_1656.png | earth_eclipses_1656.png | 0.256731 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | DQ_002547 | image | abc_question_images/earth_eclipses_11631.png | earth_eclipses_11631.png | 0.25462 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_1106 | text | null | Despite these problems, there is a rich fossil record. How does an organism become fossilized? | 0.581757 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_2590 | text | null | Darwin spent many years thinking about his own observations and the writings of Lamarck, Lyell, and Malthus. What did it all mean? How did it all fit together? The answer, of course, is the theory of evolution by natural selection. | 0.561739 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_0397 | text | null | Satellites orbit high above the Earth in several ways. Different orbits are important for viewing different things about the planet. | 0.556578 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_1825 | text | null | The study of the universe is called cosmology. Cosmologists study the structure and changes in the present universe. The universe contains all of the star systems, galaxies, gas, and dust, plus all the matter and energy that exists now, that existed in the past, and that will exist in the future. The universe includes all of space and time. | 0.555851 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_2587 | text | null | Besides his observations on the Beagle, other influences helped Darwin develop his theory of evolution by natural selection. These included his knowledge of plant and animal breeding and the ideas of other scientists. | 0.555443 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_0094 | text | null | Our solar system began about 5 billion years ago. The Sun, planets and other solar system objects all formed at about the same time. | 0.550239 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_0596 | text | null | Pluto was once considered one of the outer planets, but when the definition of a planet was changed in 2006, Pluto became one of the dwarf planets. It is one of the largest and brightest objects that make up this group. Look for Pluto in the next lesson, in the discussion of dwarf planets. | 0.545416 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_4644 | text | null | Science is more about gaining knowledge than it is about simply having knowledge. Science is a way of learning about the natural world that is based on evidence and logic. In other words, science is a process, not just a body of facts. Through the process of science, our knowledge of the world advances. | 0.529835 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_2592 | text | null | Darwin finally published his theory of evolution by natural selection in 1859. He presented it in his book On the Origin of Species. The book is very detailed and includes a lot of evidence for the theory. Darwins book changed science forever. The theory of evolution by natural selection became the unifying theory of all life science. | 0.529783 |
NDQ_018623 | what did galileo discover with his telescope? | null | a. hills and valleys on the moon, b. spots on the sun, c. moons of Jupiter, d. all of the above | d | T_4823 | text | null | Newtons third law of motion is just one of many scientific laws. A scientific law is a statement describing what always happens under certain conditions. Other examples of laws in physical science include: Newtons first law of motion Newtons second law of motion Newtons law of universal gravitation Law of conservation of mass Law of conservation of energy Law of conservation of momentum | 0.520865 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_0823 | image | textbook_images/measuring_and_predicting_earthquakes_20555.png | FIGURE 7.33 This seismograph records seismic waves. | 0.32257 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_4912 | image | textbook_images/technology_and_science_23109.png | FIGURE 1.3 | 0.311612 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_0824 | image | textbook_images/measuring_and_predicting_earthquakes_20556.png | FIGURE 7.34 These seismograms show the arrival of P- waves and S-waves. through liquid. So the liquid outer core creates an S-wave shadow zone on the opposite side of the Earth from the quake. | 0.30783 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_1409 | image | textbook_images/measuring_earthquake_magnitude_20926.png | FIGURE 1.1 | 0.3065 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | DQ_001985 | image | question_images/faults_1704.png | faults_1704.png | 0.300112 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | DD_0052 | image | teaching_images/seismic_waves_7551.png | The diagram illustrates the cross section of the Earth's crust and what causes Earthquakes. A Fault is a fracture in the EarthÕs crust separating two blocks of the Earth's crust that slide against one another during an earthquake. The Epicenter is the point on the EarthÕs surface located directly over the Focus, where the most violent tremors are felt. The Focus is also a point in the EarthÕs crust where an earthquake is triggered. Also called the Hypocenter. Shown also are the Wave fronts or seismic waves which is a series of vibrations generated at the focus that disperse in all directions, causing shaking of the EarthÕs surface. A fault scarp is a small step or offset on the ground surface where one side of a fault has moved vertically with respect to the other. They are characterized by uneven landscapes. Fault scarps may be only a few centimeters or many meters high. | 0.291489 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | DQ_001697 | image | question_images/seismic_waves_1695.png | seismic_waves_1695.png | 0.288817 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | DQ_001708 | image | question_images/seismic_waves_7552.png | seismic_waves_7552.png | 0.284422 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | DQ_001997 | image | question_images/faults_173.png | faults_173.png | 0.281055 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_0183 | image | textbook_images/the_ocean_floor_20122.png | FIGURE 14.19 Sound waves travel through ocean water, but they bounce off the ocean floor. They move through ocean water at a known speed. Can you use these facts to explain how sonar works? | 0.280793 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_0822 | text | null | Seismic waves are measured on a seismograph. Seismographs contain a lot of information, and not just about earthquakes. | 0.753678 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_0772 | text | null | The Cold War helped scientists to learn more about our planet. They set up seismograph networks during the 1950s and early 1960s. The purpose was to see if other nations were testing atomic bombs. Of course, at the same time, the seismographs were recording earthquakes. | 0.682365 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_0813 | text | null | Seismic waves are the energy from earthquakes. Seismic waves move outward in all directions away from their source. Each type of seismic wave travels at different speeds in different materials. All seismic waves travel through rock, but not all travel through liquid or gas. Geologists study seismic waves to learn about earthquakes and the Earths interior. | 0.669103 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_1572 | text | null | Moving magma shakes the ground, so the number and size of earthquakes increases before an eruption. A volcano that is about to erupt may produce a sequence of earthquakes. Scientists use seismographs that record the length and strength of each earthquake to try to determine if an eruption is imminent. | 0.661224 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_1566 | text | null | Scientists are a long way from being able to predict earthquakes. A good prediction must be detailed and accurate. Where will the earthquake occur? When will it occur? What will be the magnitude of the quake? With a good prediction authorities could get people to evacuate. An unnecessary evacuation is expensive and causes people not to believe authorities the next time an evacuation is ordered. | 0.651874 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_1080 | text | null | An earthquake is sudden ground movement caused by the sudden release of energy stored in rocks. Earthquakes happen when so much stress builds up in the rocks that the rocks rupture. The energy is transmitted by seismic waves. Earthquakes can be so small they go completely unnoticed, or so large that it can take years for a region to recover. | 0.651517 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_0815 | text | null | There are two major types of seismic waves. Body waves travel through the Earths interior. Surface waves travel along the ground surface. In an earthquake, body waves are responsible for sharp jolts. Surface waves are responsible for rolling motions that do most of the damage in an earthquake. | 0.64947 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_0804 | text | null | Where an earthquake takes place is described by its focus and epicenter. | 0.648218 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_1648 | text | null | People have always tried to quantify the size of and damage done by earthquakes. Since early in the 20th century, there have been three methods. What are the strengths and weaknesses of each? | 0.639253 |
NDQ_018627 | using seismometers, scientists discovered that | null | a. the moon has earthquakes., b. the sun has an atmosphere., c. Earth has a solid inner core., d. none of the above | c | T_1096 | text | null | Deadly earthquakes occur at transform plate boundaries. Transform faults have shallow focus earthquakes. Why do you think this is so? | 0.628236 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | DQ_010909 | image | question_images/simple_machines_7556.png | simple_machines_7556.png | 0.311048 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_4916 | image | textbook_images/technology_careers_23112.png | FIGURE 1.1 | 0.308033 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | DQ_010907 | image | abc_question_images/simple_machines_19248.png | simple_machines_19248.png | 0.294033 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | DD_0211 | image | teaching_images/simple_machines_9246.png | Shown in the diagram are the six types of simple machines. A simple machine is a mechanical device that makes work easier. It includes the inclined plane, wedge, lever, wheel and axle, screw and pulley. An inclined plane is a flat surface that is slanted, or inclined, so it can help move objects across distances. A common inclined plane is a ramp used to lift heavy objects in a back of a truck. Instead of using the smooth side of the inclined plane to make work easier, you can also use the pointed edges to do other kinds of work. When you use the edge to push things apart, this movable inclined plane is called a wedge. An ax blade is one example of a wedge. Any tool that pries something loose is a lever. Levers can also lift objects. A lever is an arm that turns against a fulcrum (the point or support on which a lever pivots). Think of the claw end of a hammer that you use to pry nails loose; itÕs a lever. The Wheel and Axle makes work easier by moving objects across distances. The wheel (or round end) turns with the axle (or cylindrical post) causing movement. On a wagon, for example, a container rests on top of the axle to help transport heavy objects. A Screw helps you do work is that it can be easily turned to move itself through a solid space like turning a jar cover to keep it the jar air tight. Instead of an axle, a wheel could also rotate a rope, cord, or belt. This variation of the wheel and axle is the pulley. In a pulley, a cord wraps around a wheel. Instead of an axle, you can use the wheelÕs rotation to raise and lower objects, making work easier. On a flagpole, for example, a rope is attached to a pulley to raise and lower the flag more easily. | 0.284587 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | DQ_010891 | image | abc_question_images/simple_machines_17556.png | simple_machines_17556.png | 0.274897 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | DQ_010899 | image | abc_question_images/simple_machines_18197.png | simple_machines_18197.png | 0.272155 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | DQ_010912 | image | question_images/simple_machines_7557.png | simple_machines_7557.png | 0.27007 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_4856 | image | textbook_images/simple_machines_23079.png | FIGURE 1.4 | 0.268252 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | DQ_010938 | image | question_images/simple_machines_9244.png | simple_machines_9244.png | 0.267777 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_4832 | image | textbook_images/scientific_process_23068.png | FIGURE 1.1 | 0.2623 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_4916 | text | null | Different types of engineers, such as electrical and mechanical engineers, must work together to build roller coasters and most other engineering projects. You can learn about these and other technology careers at the URLs listed here and in the Figure 1.1. These are just a few of many possible careers in technology. Do any of these careers interest you? | 0.631863 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_4438 | text | null | A combustion engine is a complex machine that burns fuel to produce thermal energy and then uses the thermal energy to do work. There are two types of combustion engines: external and internal. A steam engine is an external combustion engine. | 0.61565 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_4854 | text | null | Examples of machines that increase the distance over which force is applied are leaf rakes and hammers (see Figure which the force is applied, but it reduces the strength of the force. | 0.599088 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_3708 | text | null | A combustion engine is a complex machine that burns fuel to produce thermal energy and then uses the energy to do work. Two basic types of combustion engines are external and internal combustion engines. | 0.588412 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_3762 | text | null | The development of new technology is called technological design. It is similar to scientific investigation. Both processes use evidence and logic to solve problems. | 0.581985 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_4533 | text | null | A combustion engine is a complex machine that burns fuel to produce thermal energy and then uses the energy to do work. In a car, the engine does the work of providing kinetic energy that turns the wheels. The combustion engine in a car is a type of engine called an internal combustion engine. (Another type of combustion engine is an external combustion engine.) | 0.581647 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_4258 | text | null | A compound machine is a machine that consists of more than one simple machine. Some compound machines consist of just two simple machines. You can read below about two examplesthe wheelbarrow and corkscrew. Other compound machines, such as bicycles, consist of many simple machines. Big compound machines such as cars may consist of hundreds or even thousands of simple machines. | 0.57799 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_2534 | text | null | Both types of reproduction have certain advantages. | 0.572465 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_3907 | text | null | Two important devices depend on electromagnetic induction: electric generators and electric transformers. Both devices play critical roles in producing and regulating the electric current we depend on in our daily lives. | 0.567472 |
NDQ_018644 | which type of engineer develops and tests machines? | null | a. electrical engineer, b. mechanical engineer, c. chemical engineer, d. sanitary engineer | b | T_1698 | text | null | How well soil forms and what type of soil forms depends on several different factors, which are described below. | 0.560621 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_4916 | image | textbook_images/technology_careers_23112.png | FIGURE 1.1 | 0.273576 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | DQ_010909 | image | question_images/simple_machines_7556.png | simple_machines_7556.png | 0.266228 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | DQ_010912 | image | question_images/simple_machines_7557.png | simple_machines_7557.png | 0.260314 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | DQ_011367 | image | question_images/circuits_219.png | circuits_219.png | 0.245224 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | DQ_011504 | image | question_images/states_of_matter_7617.png | states_of_matter_7617.png | 0.239032 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | DQ_010891 | image | abc_question_images/simple_machines_17556.png | simple_machines_17556.png | 0.238812 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_4856 | image | textbook_images/simple_machines_23079.png | FIGURE 1.4 | 0.236993 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | DQ_010895 | image | abc_question_images/simple_machines_17557.png | simple_machines_17557.png | 0.232804 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | DQ_011493 | image | abc_question_images/states_of_matter_19258.png | states_of_matter_19258.png | 0.228925 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_3507 | image | textbook_images/the_scope_of_physical_science_22209.png | FIGURE 1.6 All these activities involve matter and energy. Can you explain how or why? | 0.228463 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_4644 | text | null | Science is more about gaining knowledge than it is about simply having knowledge. Science is a way of learning about the natural world that is based on evidence and logic. In other words, science is a process, not just a body of facts. Through the process of science, our knowledge of the world advances. | 0.7252 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_2237 | text | null | All known matter can be divided into a little more than 100 different substances called elements. | 0.671523 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_0638 | text | null | To understand minerals, we must first understand matter. Matter is the substance that physical objects are made of. | 0.661198 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_4830 | text | null | Investigations are at the heart of science. They are how scientists add to scientific knowledge and gain a better understanding of the world. Scientific investigations produce evidence that helps answer questions. Even if the evidence cannot provide answers, it may still be useful. It may lead to new questions for investigation. As more knowledge is discovered, science advances. | 0.659442 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_4715 | text | null | Compare and contrast the basic properties of matter, such as mass and volume. | 0.656727 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_1905 | text | null | Most scientific theories were developed by scientists doing basic scientific research. Like other sciences, life science may be either basic or applied science. | 0.656389 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_3750 | text | null | Doing science often requires calculations. Converting units is just one example. Calculations are also needed to find derived quantities. | 0.650835 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_3762 | text | null | The development of new technology is called technological design. It is similar to scientific investigation. Both processes use evidence and logic to solve problems. | 0.650603 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_3942 | text | null | Energy is defined as the ability to cause changes in matter. You can change energy from one form to another when you lift your arm or take a step. In each case, energy is used to move matter you. The energy of moving matter is called kinetic energy. | 0.644659 |
NDQ_018646 | all engineers need basic knowledge of math and science. | null | a. true, b. false | a | T_3491 | text | null | Vitamins and minerals are also nutrients. They do not provide energy, but they are needed for good health. | 0.639449 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_4916 | image | textbook_images/technology_careers_23112.png | FIGURE 1.1 | 0.308742 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_2538 | image | textbook_images/protein_synthesis_21613.png | FIGURE 5.15 Blueprints for a house | 0.228447 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | DD_0252 | image | teaching_images/lewis_dot_diagrams_9146.png | Water is a transparent common substance that makes up the earth's oceans, lakes, seas, rivers, streams and more. Water is essential for every living thing to replenish and hydrate. The chemical formula for water contains one oxygen atom to two hydrogen atoms. Everything from the earth's crust to the human brain contain great amounts of water. Water on earth is continually being used and then goes through the water cycle to become new and usable again. The water cycle involves evaporation, transpiration, condensation, precipitation and runoff. Even though water does not have any calories or nutritional benefit it is essential to all living forms on earth. Fishing which occurs in salt and fresh type waters yields much food for the world's people. Water even involves exercise for those who like to swim and engage in other sports like water skiing, wakeboarding and so on. | 0.211647 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | DQ_011999 | image | question_images/lewis_dot_diagrams_9149.png | lewis_dot_diagrams_9149.png | 0.211647 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | DQ_011993 | image | question_images/lewis_dot_diagrams_9145.png | lewis_dot_diagrams_9145.png | 0.211647 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | DQ_011963 | image | question_images/lewis_dot_diagrams_9131.png | lewis_dot_diagrams_9131.png | 0.211647 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_3646 | image | textbook_images/simple_machines_22319.png | FIGURE 16.14 An inclined plane makes it easier to move objects to a higher elevation. | 0.206636 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_0911 | image | textbook_images/agriculture_and_human_population_growth_20610.png | FIGURE 1.4 Early in the Industrial Revolution, large numbers of people who had been freed from food production were available to work in factories. | 0.203113 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | DQ_010943 | image | question_images/simple_machines_9245.png | simple_machines_9245.png | 0.198517 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | DQ_011966 | image | question_images/lewis_dot_diagrams_9133.png | lewis_dot_diagrams_9133.png | 0.19781 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_4916 | text | null | Different types of engineers, such as electrical and mechanical engineers, must work together to build roller coasters and most other engineering projects. You can learn about these and other technology careers at the URLs listed here and in the Figure 1.1. These are just a few of many possible careers in technology. Do any of these careers interest you? | 0.604156 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_3801 | text | null | Although all electromagnetic waves travel at the same speed, they may differ in their wavelength and frequency. | 0.585677 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_4715 | text | null | Compare and contrast the basic properties of matter, such as mass and volume. | 0.58452 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_4644 | text | null | Science is more about gaining knowledge than it is about simply having knowledge. Science is a way of learning about the natural world that is based on evidence and logic. In other words, science is a process, not just a body of facts. Through the process of science, our knowledge of the world advances. | 0.584288 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_1447 | text | null | Minerals are divided into groups based on chemical composition. Most minerals fit into one of eight mineral groups. | 0.584185 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_0681 | text | null | Mining provides people with many resources they need, but mining can be hazardous to people and the environment. Miners should restore the mined region to its natural state. It is also important to use mineral resources wisely. Most ores are non-renewable resources. | 0.584037 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_0726 | text | null | Nuclear energy is produced by splitting the nucleus of an atom. This releases a huge amount of energy. | 0.583704 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_2237 | text | null | All known matter can be divided into a little more than 100 different substances called elements. | 0.58062 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_0710 | text | null | Coal is a solid hydrocarbon. Coal is useful as a fuel, especially for generating electricity. | 0.578737 |
NDQ_018648 | most engineers work alone to complete entire projects. | null | a. true, b. false | b | T_0423 | text | null | Almost a quarter of the water used worldwide is used in industry. Industries use water for many purposes. Chemical processes need a lot of water. Water is used to generate electricity. An important way that industries use water is to cool machines and power plants. | 0.568711 |
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