Space

4. The Sun is a ______. [4]
6. There are _______ planets in the Solar System. [5]
9. A person who travels to and explores space. [9]
11. The earth rotates on its _____. [4]
12. The season are a result of the Earth's axis being ______. [6]
13. The equipment used to view objects in space. [9]
14. The imaginary line running around the centre of the Earth [7]
15. The source of light in the solar system. [3]
19. The phase of the moon when the whole of its surface reflects light. [4,4]
20. The force pulling objects towards the centre of the Earth. [7]

1. The hemisphere where the North Pole is located. [8]
2. The ‘_______ belt’ of space rocks and debris in the solar system. [8]
3. The moon ______ the Earth. [6]
5. When the moon is positioned between the Earth and the sun, blocking all light reaching the Earth. [5,7]
7. The Earth is divided into two halves called ________.[11]
8. Winter is caused by the hemisphere of the Earth being tilted _____ from the sun. [4]
10. First person to walk on the moon. [4,9]
16. Layer surrounding the Earth that supports the existence of living organisms. [10]
17. The length of time it takes for the Earth to orbit the Sun. [4]
18. The length of time it takes for the Earth to rotate once.[3]
21. Summer is caused by the hemisphere of the Earth being tilted _____ the sun. [7]