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Grade 5
Topic Cloze Quiz
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Chemical Changes
When a substance is heated or cooled it can go through a
paint
chemical reaction
physical
products
Select your answer
change. The substance may change its size, its shape, or its
state
rust
chemical change takes place
reactants
Select your answer
, but remain the same substance. When atoms link together to form new substances, a
products
chemical change takes place
physical
rust
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. The
reactants
chemical reaction
rust
paint
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are the original substances. New substances produced when a
reactants
physical
chemical reaction
state
Select your answer
takes place are called the
reactants
chemical reaction
products
physical
Select your answer
. A common example of this kind of change is
rust
reactants
products
paint
Select your answer
or iron oxide. One way to prevent it from forming on steel parts is to
paint
rust
physical
state
Select your answer
them.
