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Science Unit 1
| Question | Answer |
|---|---|
| What is the name of the galaxy where Earth and our solar system are located? | Milky Way |
| What causes the Earth to experience day and night? | Earth's rotation on its axis |
| What is a constellation? | an arrangement of stars as seen on Earth |
| Why do we see different constellations in the night sky at different times of the year? | Because of Earth's orbit around the sun |
| Explain what an astronomer does. | study stars, planets, and other objects in the universe |
| Why can’t we see the stars in the sky during the daytime? | Because the sun is so close to us that its light outshines other stars |
| If you see one star that looks much brighter than another, does that always mean it is bigger? Explain why or why not. | No, if a star looks brighter, it might be closer to us |
| What is the only star in our solar system? | the Sun |
| What is the difference between the words "rotates" and "orbits" when talking about Earth's movements? Give an example of each. | Orbit: move around something (like Duck Duck Goose) Rotate: spins on an axis (like a spinning top) |
| Are all the stars in a constellation the same distance from Earth? | No, stars are a variety of distances from Earth |
| How long does it take for Earth to rotate once on its axis? What is that called? | 24 hours, a day |
| How long does it take for Earth to orbit the Sun once? What is that called? | 365 days, a year |
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