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22 Cards in this Set
- Front
- Back
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To change a liquid to a solid, ____ (more or less) heat must be applied?
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LESS
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When more energy is transferred to an object, what must have increased?
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its temperature
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When oxygen in the air reacts with iron to form iron oxide (rust), this is an example of a chemical change or a physical change?
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CHEMICAL CHANGE
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To measure the volume of an irregularly shaped object, you should use ...
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a graduated cylinder
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Cutting paper is an example of
a physicl change or chemical change? |
PHYSICL CHANGE
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A chemical change always produces a new substance. True or False?
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True
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In what state of matter do the molecules have the most kinetic energy?
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GAS
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A liquid becomes a solid when there is less or more energy/heat?
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LESS
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Breaking your pencil in half--exmple of chemicl or physical change?
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physical change
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Lightning is an example of what state of matter?
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PLASMA
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The mass of an object is always constant--True or False?
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True
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When molecules loose energy/heat, they move more rapidyl or slowly?
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SLOWLY
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______ depends on the gravitational pull against that object
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WEIGHT
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In what state of matter do the molecules slip and slid around?
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LIQUID
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To measure a block of wood, which measuring tool should you use?
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a balance
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Sometimes you might hear the state of matter describe as the ______ of matter
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phase
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Burning paper is an example of a physical change or a chemical change?
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CHEMICAL CHANGE
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Weight and mass are the same thing--true or false
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false
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In which state of matter are the molecules farthest apart?
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GAS
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______ is the pull that gravity has on an object.
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MASS
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To find the volume of a regular rectangle, you would use the formula ...
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length x width x height
(L x W x H ) |
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In what state of matter are the molecules the closest?
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SOLID
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