横向
1
Compound containing oxygen
3
Icy body with a tail near the sun
4
Push or pull on an object
7
Chemical element in table salt
11
Element found in all living things
13
Center of an atom or cell
14
Glass that splits light into spectrum
纵向
1
Path of a planet around the sun
2
Our home planet
5
Precious yellow metallic element
6
Natural satellite of Earth
8
Substance with pH below 7
9
Blocking of light by a celestial body
10
Nerve cell in the brain
12
Fourth state of matter