10 terms

Physical and Chemical Changes Section 2 Reinforcement (Science) Chapter 3

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Physical change involve changes in _____
Appearance
A common physical change occurs when matter changes from one _____ to another, such as from a gas, to a _____ or a _____
State
Liquid
Solid
One example of this kind of physical change takes place when water _____, changing from a liquid to a solid to form _____
Freezes
Ice
One easy way to determine if a physical change has taken place is to note changes in _____ or size
Shape
When a chemical change takes place, a substance is changed into a _____ substance
Different
Two examples of a chemical changes are fireworks explosions and _____ in leaves
Color Changes
A sign of a chemical change is the release or _____ of _____
Gain
Energy
Other signs of a chemical change are an odd odor or the formation of a _____ or a solid
Gas
List three changes that are physical changes
1. Weathering
2. Melting Ice
3. Boiling Water
Answers Will Vary
List three changes that are chemical changes
1. Food Digesting In Your Body
2. Burning Match
3. Rusting Car