Grade 4 Science

2. The kind of rock that the Moon is made of.
3. The layer of air all the way around the Earth.
7. SYSTEM The large group of planets and the Sun that Earth belongs to.
8. MOON This Moon phase is in "complete light" where we see the whole face.
11. When we see more and more of the Moon each day after the New Moon.
12. The movement of the Earth spinning around its axis, taking 24 hours.
14. The word that means "to block out," as in a Solar Eclipse.
16. The part of the Moon that is visible when the Sun's light is only falling on it partially.
18. A star made mostly of a burning gas called Hydrogen.
22. The gas that makes up 21% of Earth's atmosphere.
23. The gas that makes up 78% of Earth's atmosphere.
24. The largest land masses on Earth.
25. ECLIPSE When the Moon passes between the Sun and Earth, blocking the Sun.

1. The gas that makes up most of the Sun.
2. The movement of an object (like a planet) completing one orbit around the Sun.
4. The shape of a planet's orbit, like a flattened circle.
5. The name for small land masses surrounded by water.
6. A part of the Moon that we see, like a banana shape.
9. The pathway a planet or moon takes around a bigger body.
10. When we see less and less of the Moon each day after the Full Moon.
11. This is what Earth's surface is mostly covered with.
13. The shape of the Earth, which is a bumpy, squashed sphere.
15. The pattern of how the Moon appears to change shape as it orbits the Earth.
17. The Moon does not shine itself, but does this to light from the Sun.
18. The biggest object in our Solar System.
19. Earth's closest neighbor in space.
20. The planet that is the nearest body in space to the Moon.
21. An imaginary line from top to bottom around which the Earth spins.
23. MOON The Moon phase that is in "complete darkness" and cannot be seen.