| A | B |
|---|
| Mars | the Red Planet |
| Earth | only known planet to have living things |
| sun | it gives the Earth heat and light |
| moon | the satellite that travels around the earth |
| stars | glowing balls of gas that give off their own light and heat |
| Venus | the "Earth's Twin"; a very bright planet |
| gases | in vis able sub stances that spread to fill up the spaces they are in |
| energy | the power that makes machines work and pro duces heat |
| surface | the outside part of something |
| reflect | to show a picture (or image) of something on a shiny surface, like a mirror |
| distance | the amount of space between two places |
| space | the universe past the Earth |
