mrs. miller - 2009. freeze, melt, or evaporate when a substance changes in one of these 3 ways, it...
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Mrs. Miller - 2009
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freeze, melt, or evaporate
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freeze, melt, or evaporate
When a substance changes in one of these 3 ways, it has made a physical change.
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chemical changes
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chemical changes
What type of changes occur when one or more substances
are changed to form a new substance.
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evaporate
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evaporate
When a liquid disappears into a vapor, it is said to _____.
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A new substance is formed
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A new substance is formed
What happens during a chemical change.
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It has turned orange
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It has turned orange
A shovel has been left outdoors and has rusted.
What evidence shows a chemical reaction has taken
place?
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Solid
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Solid
This is a substance that has a definite volume and holds
its own shape.
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Liquid
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Liquid
This is matter that takes the shape of its container
because it has a definite volume but no definite shape.
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Matter is neither created or destroyed
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Matter may undergo changes, but find a statement about matter that is always true.
Matter is neither created or destroyed
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reactants
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reactants
Two or more substances that are put together to
make something.
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Gas
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Gas
A ______ has no definite shape or volume.
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physical changes
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physical changes
Changes in matter that change form but not identity are call ___.
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A new substance is not formed
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A new substance is not formed
When two substances are put together, but they keep their own identities, what type of substance forms?
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dissolved
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dissolved
If one substance disappears into another substance
when they are mixed, it is said that they are ______.
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heat
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heat
Energy that is being given off or absorbed is called
_____.
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It will hold its shape
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It will hold its shape
How do you know when something is a solid?
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reaction
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reaction
Another name for a chemical change is a
chemical _______.
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matter
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matter
This has mass and volume.
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substances
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substances
What things are made of.
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weight
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weight
The pull of gravity on matter is called _______.
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Physical properties
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Physical properties
Changes in size, shape, odor, and hardness are
examples of these.