6 terms

Chemical and Physical Reactions

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Terms in this set (...)

variable
a property of a substance that can be changed such as size or shape
chemical reaction
activity that happens when substances come in contact with each other and cause a change that forms a new substance such as rust
reaction
the activity that happens a substance either combines with another substance or separates from another substance
indicators
clues to the changes that are happening
iron oxide
rust; the result of a chemical reaction when iron combines with oxygen
physical change
a change in the size, shape, or phase of matter; examples include breaking an ice cube into smaller pieces (changing size/shape) or melting an ice cube (changing from solid to liquid)