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NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | DD_0262 | image | teaching_images/hydrocarbons_9118.png | The diagram shows the molecular structure of Hydrocarbons. Hydrocarbons can be classified into Saturated and Unsaturated Hydrocarbons. Saturated Hydrocarbons are the simplest Hydrocarbons. They are called saturated because each carbon atom is bonded to as many hydrogen atoms as possible and single bond between carbon atoms. In other words, the carbon atoms are saturated with hydrogen. As shown in the diagram, each carbon atoms are bonded to 3 hydrogen atoms and only one carbon atoms. In unsaturated hydrocarbons, The carbon atoms may have more then one bond to other carbon atoms and only 2 hydrogen atoms. Hydrocarbons are used to manufacture many products, including plastics and synthetic fabrics such as polyester. They are also used as fuels like Butane. | 0.359586 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_4093 | image | textbook_images/carbon_and_living_things_22644.png | FIGURE 9.21 Both of these fatty acid molecules have six carbon atoms and two oxygen atoms. How many hydrogen atoms does each fatty acid have? | 0.343896 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_4582 | image | textbook_images/lipid_classification_22926.png | FIGURE 1.2 | 0.33956 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_3930 | image | textbook_images/types_of_matter_22527.png | FIGURE 3.13 These three mixtures differ in the size of their particles. Which mixture has the largest particles? Which has the smallest particles? | 0.315586 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_4868 | image | textbook_images/solute_and_solvent_23087.png | FIGURE 1.2 | 0.294484 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_3926 | image | textbook_images/types_of_matter_22523.png | FIGURE 3.9 Table salt is much different than its com- ponents. What are some of its proper- ties? | 0.291191 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_3513 | image | textbook_images/solubility_and_concentration_22212.png | FIGURE 10.2 This graph shows the amount of different solids that can dissolve in 1 L of water at 20 degrees C. | 0.290803 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | DQ_012099 | image | question_images/hydrocarbons_9119.png | hydrocarbons_9119.png | 0.290777 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_4810 | image | textbook_images/saturation_23062.png | FIGURE 1.1 | 0.289254 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_4894 | image | textbook_images/states_of_matter_23100.png | FIGURE 1.2 | 0.289089 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_0164 | text | null | You know that ocean water is salty. But do you know why? How salty is it? | 0.677315 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_4018 | text | null | Water (H2 O) is an example of a chemical compound. Water molecules always consist of two atoms of hydrogen and one atom of oxygen. Like water, all other chemical compounds consist of a fixed ratio of elements. It doesnt matter how much or how little of a compound there is. It always has the same composition. | 0.625524 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_0147 | text | null | Freshwater below Earths surface is called groundwater. The water infiltrates, or seeps down into, the ground from the surface. How does this happen? And where does the water go? | 0.624735 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | 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. | 0.622521 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_1593 | text | null | Most of Earths water is stored in the oceans, where it can remain for hundreds or thousands of years. | 0.613919 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_1674 | text | null | Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water. | 0.612616 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_0669 | text | null | Most water on Earth, like the water in the oceans, contains elements. The elements are mixed evenly through the water. Water plus other substances makes a solution. The particles are so small that they will not come out when you filter the water. But the elements in water can form solid mineral deposits. | 0.612045 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | 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. | 0.603132 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_1443 | text | null | Water on Earth, such as the water in the oceans, contains chemical elements mixed into a solution. Various processes can cause these elements to combine to form solid mineral deposits. | 0.601645 |
NDQ_018286 | which saltwater solution is unsaturated? | null | a. 358 g of salt in 1 L of water at 20 °C, b. 359 g of salt in 1 L of water at 20 °C, c. 360 g of salt in 1 L of water at 20 °C, d. none of the above | a | T_3941 | text | null | Why do different states of matter have different properties? Its because of differences in energy at the level of atoms and molecules, the tiny particles that make up matter. | 0.60062 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_4633 | image | textbook_images/modern_periodic_table_22960.png | FIGURE 1.2 | 0.330154 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_3930 | image | textbook_images/types_of_matter_22527.png | FIGURE 3.13 These three mixtures differ in the size of their particles. Which mixture has the largest particles? Which has the smallest particles? | 0.316292 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_4279 | image | textbook_images/convection_22749.png | FIGURE 1.1 | 0.313096 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_3510 | image | textbook_images/introduction_to_solutions_22211.png | FIGURE 10.1 These two diagrams show how an ionic compound (salt) and a covalent compound (sugar) dissolve in a solvent (water). MEDIA Click image to the left or use the URL below. URL: https://www.ck12.org/flx/render/embeddedobject/5004 | 0.302889 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_3702 | image | textbook_images/transfer_of_thermal_energy_22362.png | FIGURE 18.8 Convection currents carry thermal energy throughout the soup in the pot. | 0.300581 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_4790 | image | textbook_images/recognizing_chemical_reactions_23053.png | FIGURE 1.2 | 0.294092 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | DQ_010978 | image | question_images/convection_of_air_8045.png | convection_of_air_8045.png | 0.288684 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_3381 | image | textbook_images/scientific_theories_22130.png | FIGURE 1.1 Water going upward against gravity. | 0.288274 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | DQ_011608 | image | question_images/evaporation_and_sublimation_8078.png | evaporation_and_sublimation_8078.png | 0.28524 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_3961 | image | textbook_images/changes_of_state_22556.png | FIGURE 4.23 Solid carbon dioxide changes directly to the gaseous state. | 0.283875 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_1674 | text | null | Remember that H2 O is a polar molecule, so it can dissolve many substances (Figure 1.1). Salts, sugars, acids, bases, and organic molecules can all dissolve in water. | 0.718027 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_3956 | text | null | If you fill a pot with cool tap water and place the pot on a hot stovetop, the water heats up. Heat energy travels from the stovetop to the pot, and the water absorbs the energy from the pot. What happens to the water next? | 0.703328 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_4783 | text | null | Stirring a solute into a solvent speeds up the rate of dissolving because it helps distribute the solute particles throughout the solvent. For example, when you add sugar to iced tea and then stir the tea, the sugar will dissolve faster. If you dont stir the iced tea, the sugar may eventually dissolve, but it will take much longer. | 0.701761 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | 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. | 0.681365 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_0251 | text | null | Humidity is the amount of water vapor in the air. High humidity increases the chances of clouds and precipitation. | 0.667235 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_0024 | text | null | Flowing water slows down when it reaches flatter land or flows into a body of still water. What do you think happens then? The water starts dropping the particles it was carrying. As the water slows, it drops the largest particles first. The smallest particles settle out last. | 0.666799 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_4715 | text | null | Compare and contrast the basic properties of matter, such as mass and volume. | 0.663642 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_3960 | text | null | Solids that change to gases generally first pass through the liquid state. However, sometimes solids change directly to gases and skip the liquid state. The reverse can also occur. Sometimes gases change directly to solids. | 0.658862 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | 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. | 0.655007 |
NDQ_018288 | you could dissolve more sugar in a saturated sugar-water solution by heating the water. | null | a. true, b. false | a | T_3941 | text | null | Why do different states of matter have different properties? Its because of differences in energy at the level of atoms and molecules, the tiny particles that make up matter. | 0.653768 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DQ_011523 | image | question_images/states_of_matter_9252.png | states_of_matter_9252.png | 0.316084 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DQ_011479 | image | abc_question_images/states_of_matter_17613.png | states_of_matter_17613.png | 0.315596 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DD_0235 | image | teaching_images/states_of_matter_9256.png | The image below shows Gases, Liquids, and Solids. Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. Gas assumes the shape and volume of its container particles can move past one another. Liquid also assumes the shape of the part of the container which it occupies particles can move/slide past one another. while solids retains a fixed volume and shape rigid - particles locked into place | 0.315015 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DD_0234 | image | teaching_images/states_of_matter_9253.png | There are three states of matter. These three states include solid, liquid, and gas. Solid states of matter are rigid and have a fixed shape and fixed volume. They cannot be squashed. Liquid states of matter are not rigid and have no fixed shape, but have a fixed volume. They too cannot be squashed. Gas states of matter are not rigid and have no fixed shape and no fixed volume. This state of matter can be squashed. | 0.309408 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DQ_011501 | image | question_images/states_of_matter_7614.png | states_of_matter_7614.png | 0.309298 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DQ_011497 | image | question_images/states_of_matter_7613.png | states_of_matter_7613.png | 0.308663 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DQ_011504 | image | question_images/states_of_matter_7617.png | states_of_matter_7617.png | 0.308475 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DQ_011488 | image | abc_question_images/states_of_matter_19252.png | states_of_matter_19252.png | 0.3084 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DQ_011534 | image | question_images/states_of_matter_9255.png | states_of_matter_9255.png | 0.303076 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | DQ_011490 | image | abc_question_images/states_of_matter_19255.png | states_of_matter_19255.png | 0.301324 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | T_4715 | text | null | Compare and contrast the basic properties of matter, such as mass and volume. | 0.821646 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | T_0638 | text | null | To understand minerals, we must first understand matter. Matter is the substance that physical objects are made of. | 0.773287 |
NDQ_018332 | the amount of matter in an object is its volume. | 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. | 0.770995 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | T_4593 | text | null | Matter is all the stuff that exists in the universe. Everything you can see and touch is made of matter, including you! The only things that arent matter are forms of energy, such as light and sound. In science, matter is defined as anything that has mass and volume. Mass and volume measure different aspects of matter. | 0.765286 |
NDQ_018332 | the amount of matter in an object is its volume. | 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. | 0.765114 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | T_3941 | text | null | Why do different states of matter have different properties? Its because of differences in energy at the level of atoms and molecules, the tiny particles that make up matter. | 0.76147 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | 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. | 0.743363 |
NDQ_018332 | the amount of matter in an object is its volume. | 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. | 0.724208 |
NDQ_018332 | the amount of matter in an object is its volume. | 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. | 0.723055 |
NDQ_018332 | the amount of matter in an object is its volume. | null | a. true, b. false | b | T_3943 | text | null | The particles that make up matter are also constantly moving. They have kinetic energy. The theory that all matter consists of constantly moving particles is called the kinetic theory of matter. You can learn more about it at the URL below. | 0.722904 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_4894 | image | textbook_images/states_of_matter_23100.png | FIGURE 1.2 | 0.341563 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_3747 | image | textbook_images/science_skills_22397.png | FIGURE 2.6 This cylinder contains about 66 mL of liquid. What would the measure- ment be if you read the top of the meniscus by mistake? MEDIA Click image to the left or use the URL below. URL: https://www.ck12.org/flx/render/embeddedobject/5036 | 0.332428 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_3915 | image | textbook_images/properties_of_matter_22518.png | FIGURE 3.4 The displacement method is used to find the volume of an irregularly shaped solid object. It measures the amount of water that the object displaces, or moves out of the way. What is the volume of the toy dinosaur in mL? | 0.323274 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_4745 | image | textbook_images/properties_of_acids_23035.png | FIGURE 1.2 | 0.275783 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_3519 | image | textbook_images/acids_and_bases_22216.png | FIGURE 10.6 Blue litmus paper turns red when placed in an acidic solution. | 0.269013 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | DQ_011180 | image | question_images/optics_refraction_9196.png | optics_refraction_9196.png | 0.263314 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_4750 | image | textbook_images/properties_of_bases_23037.png | FIGURE 1.1 | 0.261439 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_4918 | image | textbook_images/temperature_23113.png | FIGURE 1.1 | 0.261264 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_3938 | image | textbook_images/solids_liquids_gases_and_plasmas_22537.png | FIGURE 4.4 Each bottle contains the same volume of oil. How would you describe the shape of the oil in each bottle? | 0.25846 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_0207 | image | textbook_images/the_atmosphere_20136.png | FIGURE 15.4 This drawing represents a column of air. The column rises from sea level to the top of the atmosphere. Where does air have the greatest density? | 0.25743 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_4715 | text | null | Compare and contrast the basic properties of matter, such as mass and volume. | 0.64618 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | 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. | 0.638026 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_4323 | text | null | The SI unit for distance is the meter (m). Short distances may be measured in centimeters (cm), and long distances may be measured in kilometers (km). For example, you might measure the distance from the bottom to the top of a sheet of paper in centimeters and the distance from your house to your school in kilometers. | 0.623876 |
NDQ_018334 | a graduated cylinder is used to measure length. | 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. | 0.620235 |
NDQ_018334 | a graduated cylinder is used to measure length. | 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. | 0.612698 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_3840 | text | null | Mirrors and lenses are used in optical instruments to reflect and refract light. Optical instruments include micro- scopes, telescopes, cameras, and lasers. | 0.60835 |
NDQ_018334 | a graduated cylinder is used to measure length. | 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. | 0.601776 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_2513 | text | null | DNA stands for deoxyribonucleic acid. It is a very large molecule. It consists of two strands of smaller molecules called nucleotides. Before learning how DNA is copied, its a good idea to review its structure. | 0.601042 |
NDQ_018334 | a graduated cylinder is used to measure length. | 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. | 0.600874 |
NDQ_018334 | a graduated cylinder is used to measure length. | null | a. true, b. false | b | T_4999 | text | null | Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed (and speed in general) can be represented by the equation: Speed = Distance Time | 0.600295 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | DD_0235 | image | teaching_images/states_of_matter_9256.png | The image below shows Gases, Liquids, and Solids. Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. Gas assumes the shape and volume of its container particles can move past one another. Liquid also assumes the shape of the part of the container which it occupies particles can move/slide past one another. while solids retains a fixed volume and shape rigid - particles locked into place | 0.323475 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | DQ_011523 | image | question_images/states_of_matter_9252.png | states_of_matter_9252.png | 0.319927 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_3499 | image | textbook_images/what_is_science_22207.png | FIGURE 1.4 Why do you think particles move differ- ently in different states of matter? (Hint: What causes ice to melt?) | 0.317389 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | DD_0234 | image | teaching_images/states_of_matter_9253.png | There are three states of matter. These three states include solid, liquid, and gas. Solid states of matter are rigid and have a fixed shape and fixed volume. They cannot be squashed. Liquid states of matter are not rigid and have no fixed shape, but have a fixed volume. They too cannot be squashed. Gas states of matter are not rigid and have no fixed shape and no fixed volume. This state of matter can be squashed. | 0.313969 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_4894 | image | textbook_images/states_of_matter_23099.png | FIGURE 1.1 | 0.313457 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | DQ_011540 | image | question_images/states_of_matter_9257.png | states_of_matter_9257.png | 0.312625 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | DQ_011512 | image | question_images/states_of_matter_7618.png | states_of_matter_7618.png | 0.309384 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | DQ_011175 | image | question_images/optics_refraction_9194.png | optics_refraction_9194.png | 0.307257 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | DQ_011650 | image | question_images/state_change_7602.png | state_change_7602.png | 0.302326 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_1895 | image | textbook_images/wind_waves_21248.png | FIGURE 1.1 | 0.302272 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | 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. | 0.709592 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | 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. | 0.675279 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_3623 | text | null | Buoyancy is the ability of a fluid to exert an upward force on any object placed in the fluid. This upward force is called buoyant force. | 0.67463 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_3960 | text | null | Solids that change to gases generally first pass through the liquid state. However, sometimes solids change directly to gases and skip the liquid state. The reverse can also occur. Sometimes gases change directly to solids. | 0.671243 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_0024 | text | null | Flowing water slows down when it reaches flatter land or flows into a body of still water. What do you think happens then? The water starts dropping the particles it was carrying. As the water slows, it drops the largest particles first. The smallest particles settle out last. | 0.663601 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_4018 | text | null | Water (H2 O) is an example of a chemical compound. Water molecules always consist of two atoms of hydrogen and one atom of oxygen. Like water, all other chemical compounds consist of a fixed ratio of elements. It doesnt matter how much or how little of a compound there is. It always has the same composition. | 0.658181 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_3860 | text | null | Electric current cannot travel through empty space. It needs a material through which to travel. However, when current travels through a material, the flowing electrons collide with particles of the material, and this creates resistance. | 0.657895 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_3941 | text | null | Why do different states of matter have different properties? Its because of differences in energy at the level of atoms and molecules, the tiny particles that make up matter. | 0.647524 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_3801 | text | null | Although all electromagnetic waves travel at the same speed, they may differ in their wavelength and frequency. | 0.642186 |
NDQ_018335 | the lowest point on the curved surface of a liquid is called the | null | a. fill line., b. beam., c. meniscus., d. none of the above | c | T_4999 | text | null | Wave speed is the distance a wave travels in a given amount of time, such as the number of meters it travels per second. Wave speed (and speed in general) can be represented by the equation: Speed = Distance Time | 0.641196 |
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