Science Discovery

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9
7
6
3
1
2
5
8
4
10

横向

1

Blocking of light by a celestial body

4

Smallest unit of an element

6

Precious yellow metallic element

10

Second lightest element

纵向

2

Element found in all living things

3

Path of a planet around the sun

5

Our home planet

7

Push or pull on an object

8

Unit of power

9

Compound containing oxygen