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| 1.
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What is a property of many metals?
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| | A) | dull appearance |
| | B) | soft |
| | C) | shiny appearance |
| | D) | liquid at room temperature |
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| 2.
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A substance is giving off heat, light, and smoke. Most likely the type of change that is occurring is __________.
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| | A) | a chemical change |
| | B) | a physical change |
| | C) | a nuclear change |
| | D) | a change of state |
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| 3.
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What is a good sign that a chemical change has occurred?
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| | A) | the physical properties are the same |
| | B) | the state of the matter has changed |
| | C) | the production of heat, light, and smoke |
| | D) | the substance seems to have disappeared |
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| 4.
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An example of a change of state is __________.
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| | A) | liquid filling a glass |
| | B) | exposing photographic film |
| | C) | ice cubes melting |
| | D) | paper burning |
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| 5.
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The law of conservation of mass states that matter cannot be __________.
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| | A) | hidden |
| | B) | created or destroyed |
| | C) | burned |
| | D) | changed |
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| 6.
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Examples of chemical properties include __________.
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| | A) | length and mass |
| | B) | flammability and reactivity |
| | C) | melting point and boiling point |
| | D) | color and shape |
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| 7.
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What substance does not have the property of ductility?
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| | A) | copper |
| | B) | silver |
| | C) | platinum |
| | D) | water |
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| 8.
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When iron rusts, it is reacting with __________ in the air.
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| | A) | nitrogen |
| | B) | oxygen |
| | C) | water |
| | D) | carbon dioxide |
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| 9.
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Why are vitamins often sold in dark brown containers?
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| | A) | to stop any physical changes inside the bottle |
| | B) | to promote chemical changes in the vitamins |
| | C) | to prevent the vitamins from going through a chemical change from exposure to light |
| | D) | to make the vitamins more powerful |
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| 10.
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Which of these can be broken down by electricity?
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| | A) | sugar |
| | B) | water |
| | C) | vitamins |
| | D) | limestone |
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| 11.
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What are the four states of matter?
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| | A) | solid, liquid, gas, and plasma |
| | B) | color, shape, size, and density |
| | C) | solid, liquid, vacuum, and plasma |
| | D) | heat, temperature, length, and mass |
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| 12.
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A change in the chemical properties of a substance results in a __________.
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| | A) | fire |
| | B) | a change of state |
| | C) | the same substance |
| | D) | new substance |
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| 13.
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What are the two senses you should use to observe materials in a laboratory?
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| | A) | seeing and hearing |
| | B) | touching and smelling |
| | C) | touching and hearing |
| | D) | seeing and tasting |
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| 14.
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A substance has gone through a chemical change. Most likely, the resulting substance __________.
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| | A) | has been created |
| | B) | has new physical properties |
| | C) | is the same as the old substance |
| | D) | is a gas |
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| 15.
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Which state of matter does not occur at room temperature?
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| | A) | gas |
| | B) | liquid |
| | C) | solid |
| | D) | plasma |
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| 16.
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Can mass be created or lost in a chemical change?
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| | A) | sometimes |
| | B) | no |
| | C) | it has not yet been determined |
| | D) | yes |
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| 17.
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Where does all the mass of wood in a fire go after the fire burns itself out?
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| | A) | It changes state. |
| | B) | It turns into smoke and ash. |
| | C) | It disappears. |
| | D) | It turns into plasma and remains that way. |
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| 18.
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An example of a chemical change is __________.
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| | A) | boiling |
| | B) | melting |
| | C) | freezing |
| | D) | burning |
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| 19.
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Why does a liquid fill the shape of a container?
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| | A) | because the particles of the liquid are constantly moving |
| | B) | because the matter has changed state |
| | C) | because this is a chemical property |
| | D) | because the particles do not move |
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| 20.
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What is a physical property of water?
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| | A) | not flammable |
| | B) | reacts with sodium |
| | C) | liquid at room temperature |
| | D) | pH of 7 |
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