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