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25 Cards in this Set
- Front
- Back
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What is anything that has mass and takes up space?
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matter
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What is a characteristic of matter that can be observed with our senses?
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physical property
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What is the amount of material that an object has?
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mass
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What is the amount of space something takes up?
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volume
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What units are used to measure mass?
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grams and kilograms
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What units are used to measure volume?
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liters and milliliters
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What are the three states of matter?
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solid, liquid and gas
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Which state has a definite shape and a definite volume?
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solid
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Which state has a definite volume but no definite shape?
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liquid
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Which state has no definite shape and no definite volume?
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gas
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Which states take the shape of the container they are in?
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liquid and gas
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Which state fills the space of the container it is in?
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gas
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What happens when you heat a solid?
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it melts into a liquid
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What happens when you heat a liquid?
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it evaporates into a gas
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What happens when you cool a gas?
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it condenses into a liquid
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What happens when you cool a liquid?
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it becomes a solid
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What is the process called when a liquid changes into a gas?
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evaporation
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What is the process called when a gas changes into a liquid?
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condensation
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What are the three states of water?
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ice, water and water vapor
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What is a change in matter that does not form a new substance?
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physical change
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What is a change in matter that forms a new substance?
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chemical change
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What is two or more kinds of matter that are mixed together called?
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mixture
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Is a mixture a physical change or chemical change? Why?
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physical change because it does not form a new substance
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What does a chemical change always require, except for rust?
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heat
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What never changes?
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God
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