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Grade 4 Chapter 12

what Are Physical Changes in Matter?

QuestionAnswer
A substance having atoms of more than one element that are combined chemically is a compound
This term describes a substance by itself. physical property
This type of change results in a new substance chemical change
How a substance reacts with other substances is known as a chemical property
Melting or freezing is a change of state
Another name for chemical change is chemical reaction
The process of boiling is a change of state
A substance having just one kind of atom as an element
The smallest possible particle of an element is an atom
This type of change does not result in a new substance. physical change
All matter is made from atoms
Atoms are too small to be seen with an ordinary microscope.
An element is made up of how many kinds of atoms? one
What always happens during a chemical change? a new substance is produced
How are physical properties and chemical properties similar? They both describe a substance
Iron reacts with oxygen in the presence of water to form rust. What kind of change is this? chemical change
What kind of change takes place when butter melts? A change of state.
Created by: s42mahoney
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