Question | Answer |
1.Where have humans visited/not visited in space? | We have only visited the moon. We have not visited anywhere else, like the other planets. |
2. Is the sun a planet? A star? How big is it compared to others like it? | It is a star. It is a medium sized star |
3. What does not orbit another object in the Solar System? | The sun |
4. Why do astronauts in orbit feel weightless? | They are not feeling the effects of gravity. |
5. What is remote sensing | Using a satellite in space to figure out the surface or image of an object. You are not there. |
6. Earth is the only planet in the solar system that has oceans. | True |
7. If something causes a satellite orbiting Earth to slow down, what will the satellite start to do? | It will fall towards Earth |
8. Why did it take so long to discover Uranus? | It was far away, so you couldn't see it before the telescope was invented. |
9. What is in our Solar System? | A star, 8 planets, comets, asteroids, moons ect. |
10. 10. If a spacecraft travels from Earth to the edge of the Solar System, what will happen to the gravitational pull between Earth and the spacecraft? | It will weaken |
11. Where does most of the energy for life and other phenomena at Earth's surface come from? | Nuclear fusion. |
12. What holds us to Earth's surface? | Gravity |
13. What is the difference between planets and stars? | Stars give off light, while planets reflect light. Planets revolve around stars. |
14. Which planets are rocky? Gaseous? | Rocky: Mercury, Venus, Earth, Mars --- Gaseous: Jupiter, Saturn, Uranus, Neptune. |
15. Why can't we send someone to Pluto today? | It would take too long |
16. What is the difference between a moon and a planet? | Moons orbit planets. Planets orbit stars. |
17. What two factors pertain to gravitational pull? | Mass and Distance |