Space Explorer

G4 · Science

Name: ____________________

1. Which planet do we live on?
a) Mars b) Earth c) Venus d) Jupiter
2. Which planet has big bright rings?
a) Saturn b) Mars c) Earth d) Mercury
3. The Sun is a...
a) Planet b) Moon c) Star d) Comet
4. How many planets are in our solar system?
a) 7 b) 8 c) 9 d) 10
5. Which planet is closest to the Sun?
a) Mercury b) Venus c) Earth d) Mars
6. Which planet is called the Red Planet?
a) Jupiter b) Mars c) Saturn d) Neptune
7. Which is the biggest planet?
a) Earth b) Saturn c) Jupiter d) Uranus
8. What goes around the Earth?
a) The Sun b) The Moon c) Mars d) A comet
9. How long does Earth take to go around the Sun?
a) One day b) One week c) One month d) One year
10. Earth spins around once every...
a) Day b) Week c) Month d) Year
11. Why does the Moon seem to change shape?
a) It melts b) We see different sunny parts c) Clouds eat it d) It gets smaller
12. We look at faraway stars with a...
a) Telescope b) Microscope c) Camera phone d) Magnifier
13. Who was the first person to walk on the Moon?
a) Neil Armstrong b) Albert Einstein c) Isaac Newton d) Yuri Gagarin
14. Which planet is the hottest?
a) Mercury b) Venus c) Mars d) Earth
15. Which one is a dwarf planet?
a) Pluto b) Mars c) Earth d) Neptune
16. Stars that make a picture in the sky are a...
a) Comet b) Constellation c) Galaxy cloud d) Planet
17. What pulls things down to the ground?
a) Magnets b) Gravity c) Wind d) Light
18. Earth looks blue from space because of its...
a) Oceans b) Sky paint c) Ice cream d) Forests
19. A shooting star is really a...
a) Star falling b) Meteor c) Planet d) Rocket
20. The path a planet takes around the Sun is its...
a) Orbit b) Ring c) Tail d) Shadow
21. What do astronauts wear outside the space station?
a) A spacesuit b) A raincoat c) A swimsuit d) Pajamas
22. It is daytime when our side of Earth faces the...
a) Moon b) Sun c) Stars d) Mars
23. The Sun is a planet.
a) True b) False
24. There is no air to breathe on the Moon.
a) True b) False
25. Saturn is made mostly of gas.
a) True b) False
26. The planet we live on is E _ _ _ h.
Answer: ______________________
27. Order these planets from the Sun.
[ ] Venus [ ] Earth [ ] Mars [ ] Mercury

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