Across
1
Positive particle in nucleus
4
Gas essential for breathing
7
Hottest planet in solar system
8
Unit of power
Down
2
Curved glass that refracts light
3
Magnetic metallic element
5
Icy body with a tail near the sun
6
Particle of light
Positive particle in nucleus
Gas essential for breathing
Hottest planet in solar system
Unit of power
Curved glass that refracts light
Magnetic metallic element
Icy body with a tail near the sun
Particle of light