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Science Test

test

QuestionAnswer
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
Created by: asucharetza980
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