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NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_4183
image
textbook_images/buoyancy_22689.png
FIGURE 1.1
0.305292
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_4447
image
textbook_images/force_22843.png
FIGURE 1.2
0.301702
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_3571
image
textbook_images/what_is_force_22255.png
FIGURE 13.2 Forces can vary in both strength and direction.
0.292868
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_3944
image
textbook_images/solids_liquids_gases_and_plasmas_22541.png
FIGURE 4.8 Kinetic energy is needed to overcome the force of attraction between particles of the same substance.
0.292751
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_3624
image
textbook_images/buoyancy_of_fluids_22302.png
FIGURE 15.12 Fluid pressure exerts force on all sides of this object, but the force is greater at the bottom of the object where the fluid is deeper.
0.288187
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_3947
image
textbook_images/behavior_of_gases_22545.png
FIGURE 4.12 As the volume of a gas increases, its pressure decreases.
0.287884
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_5007
image
textbook_images/wedge_23175.png
FIGURE 1.1
0.278465
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
DQ_011501
image
question_images/states_of_matter_7614.png
states_of_matter_7614.png
0.274566
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_0287
image
textbook_images/weather_forecasting_20178.png
FIGURE 16.23 The greater the air pressure outside the tube, the higher the mercury rises inside the tube. Mercury can rise in the tube because theres no air pressing down on it.
0.274513
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_3945
image
textbook_images/behavior_of_gases_22544.png
FIGURE 4.11 Earths atmosphere exerts pressure. This pressure is greatest at sea level. Can you explain why?
0.272255
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_4715
text
null
Compare and contrast the basic properties of matter, such as mass and volume.
0.726223
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
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.
0.711962
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_4195
text
null
Work is the use of force to move an object. It is directly related to both the force applied to the object and the distance the object moves. Work can be calculated with this equation: Work = Force x Distance.
0.711569
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
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.
0.70218
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
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.
0.697029
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_3885
text
null
The force that a magnet exerts on certain materials is called magnetic force. Like electric force, magnetic force is exerted over a distance and includes forces of attraction and repulsion. North and south poles of two magnets attract each other, while two north poles or two south poles repel each other.
0.691325
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_4893
text
null
A given kind of matter has the same chemical makeup and the same chemical properties regardless of its state. Thats because state of matter is a physical property. As a result, when matter changes state, it doesnt become a different kind of substance. For example, water is still water whether it exists as ice, liquid water, or water vapor.
0.690298
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_3946
text
null
For a given amount of gas, scientists have discovered that the pressure, volume, and temperature of a gas are related in certain ways. Because these relationships always hold in nature, they are called laws. The laws are named for the scientists that discovered them.
0.690064
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_0698
text
null
Energy changes form when something happens. But the total amount of energy always stays the same. The Law of Conservation of Energy says that energy cannot be created or destroyed. Scientists observed that energy could change from one form to another. They also observed that the overall amount of energy did not change.
0.688534
NDQ_018067
the larger the area to which force is applied, the greater the pressure is.
null
a. true, b. false
b
T_4940
text
null
Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Fluid friction occurs in liquids and gases. All four types of friction are described below.
0.687923
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_0002
image
textbook_images/the_nature_of_science_20001.png
FIGURE 1.1 The Scientific Method.
0.267855
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_4832
image
textbook_images/scientific_process_23068.png
FIGURE 1.1
0.26112
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_3740
image
textbook_images/scientific_investigation_22392.png
FIGURE 2.1 This diagram shows the steps of a scientific investigation. Other arrows could be added to the diagram. Can you think of one? (Hint: Sometimes evidence that does not support one hypothesis may lead to a new hypothesis to investigate.)
0.244668
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_1908
image
textbook_images/the_scientific_method_21256.png
FIGURE 1.8 Scientific method flow chart
0.242234
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_3373
image
textbook_images/scientific_investigation_22127.png
FIGURE 1.1
0.238702
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
DQ_012201
image
question_images/optics_reflection_9182.png
optics_reflection_9182.png
0.228052
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_0014
image
textbook_images/the_nature_of_science_20008.png
FIGURE 1.8 A medical researcher protects herself and her work with a net cap, safety goggles, a mask, and gloves.
0.226446
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_4894
image
textbook_images/states_of_matter_23100.png
FIGURE 1.2
0.223901
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_4138
image
textbook_images/atomic_forces_22671.png
FIGURE 1.2
0.220153
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_4991
image
textbook_images/wave_interference_23168.png
FIGURE 1.1
0.219681
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_2534
text
null
Both types of reproduction have certain advantages.
0.689167
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
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.
0.652519
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_1499
text
null
If we were doing a scientific investigation we need to gather the information to test the hypotheses ourselves. We would do this by making observations or running experiments.
0.651465
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_0116
text
null
Every organism is different from every other organism. Every organisms genes are different, too.
0.647771
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_4715
text
null
Compare and contrast the basic properties of matter, such as mass and volume.
0.633867
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
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.
0.631844
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_2604
text
null
Individuals dont evolve. Their alleles dont change over time. The unit of microevolution is the population.
0.630794
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_3801
text
null
Although all electromagnetic waves travel at the same speed, they may differ in their wavelength and frequency.
0.628856
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_1106
text
null
Despite these problems, there is a rich fossil record. How does an organism become fossilized?
0.628375
NDQ_018242
if research results can be replicated, it means they are more likely to be correct.
null
a. true, b. false
a
T_2573
text
null
A species genome consists of all of its genetic information. The human genome consists of the complete set of genes in the human organism. Its all the DNA of a human being.
0.623841
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_4832
image
textbook_images/scientific_process_23068.png
FIGURE 1.1
0.310233
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_0002
image
textbook_images/the_nature_of_science_20001.png
FIGURE 1.1 The Scientific Method.
0.286775
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_1908
image
textbook_images/the_scientific_method_21256.png
FIGURE 1.8 Scientific method flow chart
0.28064
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_3373
image
textbook_images/scientific_investigation_22127.png
FIGURE 1.1
0.280242
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_3740
image
textbook_images/scientific_investigation_22392.png
FIGURE 2.1 This diagram shows the steps of a scientific investigation. Other arrows could be added to the diagram. Can you think of one? (Hint: Sometimes evidence that does not support one hypothesis may lead to a new hypothesis to investigate.)
0.271727
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_2376
image
textbook_images/communities_21526.png
FIGURE 23.9 Predator-Prey populations.
0.25858
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_2368
image
textbook_images/populations_21521.png
FIGURE 23.4 Curve A represents exponential popula- tion growth. Curve B represents logistic population growth.
0.253875
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_2300
image
textbook_images/noninfectious_diseases_21488.png
FIGURE 21.4 In panel A, an abnormal cell (2) is prevented from dividing, and the abnormal cell dies (1). In panel B, an abnormal cell is not prevented from dividing. Instead, it divides uncontrollably, leading to the formation of a tumor.
0.253784
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_3142
image
textbook_images/limiting_factors_to_population_growth_21955.png
FIGURE 1.1
0.250359
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_4991
image
textbook_images/wave_interference_23168.png
FIGURE 1.1
0.248402
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_1499
text
null
If we were doing a scientific investigation we need to gather the information to test the hypotheses ourselves. We would do this by making observations or running experiments.
0.690058
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
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.
0.663126
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_0001
text
null
The scientific method is a set of steps that help us to answer questions. When we use logical steps and control the number of things that can be changed, we get better answers. As we test our ideas, we may come up with more questions. The basic sequence of steps followed in the scientific method is illustrated in Figure 1.1.
0.649928
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_1908
text
null
A life scientist would carry out a scientific investigation to try to answer this question. A scientific investigation follows a general plan called the scientific method. The scientific method is a series of logical steps for testing a possible answer to a question. The steps are shown in the flow chart in Figure 1.8.
0.645443
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_3382
text
null
Modern science is a way of understanding the physical world, based on observable evidence, reasoning, and repeated testing. That means scientists explain the world based on their own observations. If they develop new ideas about the way the world works, they set up a way to test these new ideas.
0.636756
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_2607
text
null
What happens when forces of evolution work over a long period of time? The answer is macroevolution. An example is the evolution of a new species.
0.627729
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_3441
text
null
How fast is evolution? Can you actually see evolution happening within your lifetime? Usually evolution takes a long time. So how can we visualize how it has happened?
0.62467
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_4811
text
null
An experiment is a controlled scientific study of specific variables. A variable is a factor that can take on different values. For example, the speed of an object down a ramp might be one variable, and the steepness of the ramp might be another.
0.622172
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_0904
text
null
Many changes in the genetic makeup of a species may accumulate over time, especially if the environment is changing. Eventually the descendants will be very different from their ancestors and may become a whole new species. Changes in the genetic makeup of a species over time are known as biological evolution.
0.619919
NDQ_018248
assume that a researcher plans to repeat an experiment several times to see if the results can be replicated. each time the experiment is repeated, what should be kept the same?
null
a. methods of data collection, b. methods of data analysis, c. manipulated and responding variables, d. all of the above
d
T_0698
text
null
Energy changes form when something happens. But the total amount of energy always stays the same. The Law of Conservation of Energy says that energy cannot be created or destroyed. Scientists observed that energy could change from one form to another. They also observed that the overall amount of energy did not change.
0.619348
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_4832
image
textbook_images/scientific_process_23068.png
FIGURE 1.1
0.273737
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_1908
image
textbook_images/the_scientific_method_21256.png
FIGURE 1.8 Scientific method flow chart
0.273515
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_3373
image
textbook_images/scientific_investigation_22127.png
FIGURE 1.1
0.27018
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_0002
image
textbook_images/the_nature_of_science_20001.png
FIGURE 1.1 The Scientific Method.
0.262551
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_3740
image
textbook_images/scientific_investigation_22392.png
FIGURE 2.1 This diagram shows the steps of a scientific investigation. Other arrows could be added to the diagram. Can you think of one? (Hint: Sometimes evidence that does not support one hypothesis may lead to a new hypothesis to investigate.)
0.259614
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_3271
image
textbook_images/plant_hormones_22060.png
FIGURE 1.4
0.250041
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_3227
image
textbook_images/organic_compounds_22024.png
FIGURE 1.6 A model representing DNA, a nucleic acid.
0.247029
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_4909
image
textbook_images/technological_design_process_23106.png
FIGURE 1.1
0.236436
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_3763
image
textbook_images/technology_22404.png
FIGURE 2.13 This flowchart represents the process of technological design. How does the tech- nological design process resemble a sci- entific investigation?
0.236382
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_0014
image
textbook_images/the_nature_of_science_20008.png
FIGURE 1.8 A medical researcher protects herself and her work with a net cap, safety goggles, a mask, and gloves.
0.236277
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
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.
0.710907
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_1499
text
null
If we were doing a scientific investigation we need to gather the information to test the hypotheses ourselves. We would do this by making observations or running experiments.
0.692267
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
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.
0.659021
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_2534
text
null
Both types of reproduction have certain advantages.
0.653779
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
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.
0.636716
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_1106
text
null
Despite these problems, there is a rich fossil record. How does an organism become fossilized?
0.635639
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_3758
text
null
Research in physical science can be exciting, but it also has potential dangers. Whether in the lab or in the field, knowing how to stay safe is important.
0.634664
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_1902
text
null
Each field of life science has its own specific body of knowledge and relevant theories. However, two theories are basic to all of the life sciences. They form the foundation of every life science field. They are the cell theory and the theory of evolution by natural selection. Both theories have been tested repeatedly. Both are supported by a great deal of evidence.
0.629254
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_0116
text
null
Every organism is different from every other organism. Every organisms genes are different, too.
0.623009
NDQ_018249
replication of research findings can help rule out that the results of an investigation occurred just by chance.
null
a. true, b. false
a
T_2573
text
null
A species genome consists of all of its genetic information. The human genome consists of the complete set of genes in the human organism. Its all the DNA of a human being.
0.620935
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_0013
image
textbook_images/the_nature_of_science_20007.png
FIGURE 1.7 Safety Symbols: A. Corrosive , B. Oxidiz- ing Agent, C. Toxic, D. High Voltage.
0.347273
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_3365
image
textbook_images/safety_in_the_life_sciences_22122.png
FIGURE 1.1
0.309597
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_3759
image
textbook_images/science_skills_22402.png
FIGURE 2.11 Why does glassware pose a hazard?
0.304013
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_1916
image
textbook_images/safety_in_life_science_research_21262.png
FIGURE 1.14 Common safety symbols
0.300406
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
DQ_011720
image
question_images/atomic_mass_number_9005.png
atomic_mass_number_9005.png
0.276942
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_2835
image
textbook_images/chemistry_of_life_21772.png
FIGURE 1.1
0.269465
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_4481
image
textbook_images/groups_with_metalloids_22868.png
FIGURE 1.4
0.260083
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_4203
image
textbook_images/carbon_bonding_22699.png
FIGURE 1.1
0.258372
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_4068
image
textbook_images/properties_of_carbon_22624.png
FIGURE 9.1 The dots in this diagram represent the four valence electrons of carbon.
0.258372
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
DQ_011714
image
question_images/atomic_mass_number_9004.png
atomic_mass_number_9004.png
0.258092
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_3759
text
null
Lab procedures and equipment may be labeled with safety symbols. These symbols warn of specific hazards, such as flames or broken glass. Learn the symbols so you will recognize the dangers. A list of common safety symbols is shown in Figure 2.11. Do you know how to avoid each hazard? You can learn more at this URL:
0.744977
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_3759
text
null
Lab procedures and equipment may be labeled with safety symbols. These symbols warn of specific hazards, such as flames or broken glass. Learn the symbols so you will recognize the dangers. A list of common safety symbols is shown in Figure 2.11. Do you know how to avoid each hazard? You can learn more at this URL:
0.744977
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_4747
text
null
Acids have many important uses, especially in industry. For example, sulfuric acid is used to manufacture a variety of different products, including paper, paint, and detergent. Some other uses of acids are be seen in the Figure 1.3.
0.606616
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_4355
text
null
1. What is a chemical property? 2. Define the chemical property called reactivity. 3. What is flammability? Identify examples of flammable matter.
0.599759
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_3758
text
null
Research in physical science can be exciting, but it also has potential dangers. Whether in the lab or in the field, knowing how to stay safe is important.
0.584034
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_3918
text
null
Some properties of matter can be measured or observed only when matter undergoes a change to become an entirely different substance. These properties are called chemical properties. They include flammability and reactivity.
0.583566
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_3520
text
null
Acids have many important uses, especially in industry. For example, sulfuric acid is used to manufacture a variety of different products, including paper, paint, and detergent. Some other uses of acids are illustrated in Figure 10.7.
0.582637
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_1604
text
null
Radioactivity is the tendency of certain atoms to decay into lighter atoms, a process that emits energy. Radioactivity also provides a way to find the absolute age of a rock. First, we need to know about radioactive decay.
0.578451
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_4276
text
null
Why must chemical equations be balanced? Its the law! Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.
0.57608
NDQ_018261
what does this lab safety symbol represent?
null
a. radiation hazard, b. sharp object, c. hot object, d. none of the above
c
T_0726
text
null
Nuclear energy is produced by splitting the nucleus of an atom. This releases a huge amount of energy.
0.574657