Science Word Puzzle

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2
4
1
3
8
5
6
7

Across

1

Disturbance that transfers energy

4

Positive particle in nucleus

5

Biological catalyst

6

Fourth state of matter

Down

2

Push or pull on an object

3

Hottest planet in solar system

7

Tissue that contracts for movement

8

Mass per unit volume

Science Word Puzzle - Amazing Crossword