Space Explorer: Answer key

1. 1. Which planet do we live on?

   

   Earth

2. 2. Which planet has big bright rings?

   

   Saturn

3. 3. The Sun is a...

   

   Star

4. 4. How many planets are in our solar system?

   8

5. 5. Which planet is closest to the Sun?

   Mercury

6. 6. Which planet is called the Red Planet?

   Mars

7. 7. Which is the biggest planet?

   Jupiter

8. 8. What goes around the Earth?

   

   The Moon

9. 9. How long does Earth take to go around the Sun?

   

   One year

10. 10. Earth spins around once every...

    

    Day

11. 11. Why does the Moon seem to change shape?

    

    We see different sunny parts

12. 12. We look at faraway stars with a...

    

    Telescope

13. 13. Who was the first person to walk on the Moon?

    

    Neil Armstrong

14. 14. Which planet is the hottest?

    Venus

15. 15. Which one is a dwarf planet?

    Pluto

16. 16. Stars that make a picture in the sky are a...

    

    Constellation

17. 17. What pulls things down to the ground?

    Gravity

18. 18. Earth looks blue from space because of its...

    

    Oceans

19. 19. A shooting star is really a...

    

    Meteor

20. 20. The path a planet takes around the Sun is its...

    Orbit

21. 21. What do astronauts wear outside the space station?

    A spacesuit

22. 22. It is daytime when our side of Earth faces the...

    

    Sun

23. 23. The Sun is a planet.

    

    False

24. 24. There is no air to breathe on the Moon.

    

    True

25. 25. Saturn is made mostly of gas.

    

    True

26. 26. The planet we live on is E _ _ _ h.

    

    earth

27. 27. Order these planets from the Sun.

    Mercury, then Venus, then Earth, then Mars

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