Space Review Worksheet
| # | Answer |
|---|---|
| 1 | Space is the large area beyond Earth's atmosphere where stars, planets, and other objects are found. |
| 2 | The Sun. |
| 3 | Eight. |
| 4 | Earth. |
| 5 | The Moon. |
| 6 | A planet is a large object that orbits a star and does not make its own light. |
| 7 | A star makes its own light and heat, while a planet reflects light from a star. |
| 8 | The solar system is the Sun and all the objects that orbit it, including planets, moons, asteroids, and comets. |
| 9 | Mercury, Venus, Earth, or Mars. |
| 10 | Jupiter, Saturn, Uranus, or Neptune. |
| 11 | An asteroid is a small rocky object that orbits the Sun. |
| 12 | A comet is an icy object that orbits the Sun and can form a glowing tail when it gets close to the Sun. |
| 13 | The Moon appears to change shape because we see different parts of its sunlit side as it orbits Earth. |
| 14 | Day and night are caused by Earth rotating on its axis. |
| 15 | The seasons are caused by Earth's tilted axis as it orbits the Sun. |
| 16 | Gravity is the force that pulls objects toward each other. |
| 17 | They stay in orbit because the Sun's gravity pulls on them. |
| 18 | A galaxy is a huge group of stars, gas, dust, and other space objects held together by gravity. |
| 19 | The Milky Way Galaxy. |
| 20 | Space exploration helps scientists learn more about the universe, Earth, and possible future space travel. |