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Crossword Puzzle
Crossword Puzzle

States of matter and chemical changes

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States of matter and chemical changes

Crossword Puzzle

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About this activity

Students have to read the descriptions and fill out with the words.

Created by

Marcella Endrigo
Marcella Endrigo
Brazil

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States of matter and chemical changes
 

Crossword Puzzle

States of matter and chemical changesOnline version

Students have to read the descriptions and fill out with the words.

by Marcella Endrigo
1

Some materials, like wook, can burn. When they burn, it reacts with the oxygen in the air. As a result, new materials are formed like ash and smoke. This process is called:

2

Atoms in some metals, like iron, react with the oxygen in the air and water. When this happens, a new substance if formed: rust. This process if called:

3

When organic matter decomposes, this chemical change happens. It with fresh food after some days. The food changes color and smells bad.

4

In a ... mixture, it is not possible to see the different substances. For example: mayonnaise.

5

In an ... mixture it is possible to see the individual substances. For example, a fruit salad.

6

The state of a material is called ... when, for example, water is like ice.

7

The state of a material is called ... when, for example, you have milk.

8

The state of a material is called ... when, for example, you have air inside a balloon.

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