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Astronomy final
6th grade astronomy final LMS
| Question | Answer |
|---|---|
| What is the big bang theory? | The theory that the universe was once in a hot dense state then expansion started and everything is still drifting farther apart. |
| What is the evidence for the big bang theory? | Cosmic background radiation and the age of the universe |
| Why is the big bang theory a bad name? | The universe did not explode it just started to expand so there was no "BANG" |
| What should the big bang theory be called? | The everywhere stretch |
| Gravity has 3 jobs in space what are they? | Keep you on the ground, Keep planets in orbit, `and pulls things into spheres. |
| What changes the strength of gravity? | Mass and distance |
| Gravity effects what body functions? | Muscles and Bones |
| What is accretion? | The force that pulls things together; it forms planets and other stuff |
| What is orbital motion? | The movement of objects in space around each other |
| How do planets get stuck to stars and moons get stuck to planets? | The stars are bigger than the planets so it had more mass giving it a stronger gravitational pull, same with the planets and moons. |
| How was the moon formed? | The giant impact theory states that earth had just formed and a mars-sized planet had collided into it and a blast of material went everywhere,that material accreted into a smaller sphere that is the moon. |
| what are 2 things the moon is apart of? | Tides and Eclipses |
| The moon brings Earth what? | seasons, tides, stabilizes Earth's tilt |
| The moon is seen in ____. | Phases |
| waning | getting smaller |
| waxing | getting bigger |
| The stages of the moon in order are | new moon, waxing crescent, first 1/4, waxing gibbous, full moon, waning gibbous, third 1/4, waning crescent |
| what are the 2 eclipses? | Solar and lunar |
| What are the 2 types of tides? | Neap and spring |
| What are comets made of? | ice and gas |
| What are meteors made of? | Metal and rock |
| What are asteroids made of? | rock and minerals |
| Where is the asteroid belt? | between Mars and Jupeter |
| Which of these have tails (comets, asteroids, meteors) | comets |
| Comets contain the oldest and most pristine material in the solar system. | True |
| Meteors create craters | True |
| Asteroids turn into metiors | False |
| Comets turn into asteroids | False (they just look like them) |
Created by:
abbylms
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