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Sun/Planets/Galaxy
All the science behind the sun planets and galaxy as well
| Question | Answer |
|---|---|
| What is gravity | The force that attracts an item to the center of the earth. Anything with mass |
| Gravity plays an important part in the formation of the planets jstars and the solar system | |
| How has the tilt of the earth and its revolution around the sun play apart in heating the earth and cause of seasons | The pole that is facing the Sun is bright and heated but the pole that is facing away from the sum is dark and colder. So in turn the side that is facing the sun will be warm and the opposite pole will have a different season |
| Whats the solar system | 8 planets and a moon in orbit around the sun including planetoids asteroids comets and meteorites |
| Whats nuclear fusion | The process by which hydrogen atoms fuse and form helium producing energy |
| Whats an electromagnetic spectrum | The different types of radiant energy that vary by wavelength produced by the sun. Ex: radio waves, microwaves, infrared waves, visible light, ultraviolet light, X-Rays, and gamma rays the stongest |
| Whats an axis | Imaginary line on which the earth is divided and rotates |
| What does rotate mean | To move in a circle. To spin/turn |
| What does revolve mean | To follow a path or orbit around an object |
| Whats the summer solstice | The longest day during the summer from June 21-22 |
| Whats winter solstice | The shortest day during the winter from Dec 21-22 |
| Whats the equinox | The time/date twice a year at which the sun crosses the equator when day and night are equal length |
| How does the sun produce energy | The sun is so hot because the hydrogen atoms are fusing. The hydrogen atoms are moving so fast on the sun they some time bump into each other joining nucleus's therefore a minor bit of mass is lost and an abundant amount of energy fills that empty spot |
| Stars planets solar systems galaxies universe | |
| What happens when the earth rotates on its axis | The earth rotates on its axis every 24 hours. The rotation of the earth causes different parts of earth to face the universe at different times. Tharp results in day and night in a 24 our period |
| What happens as the earth revolves around the sun | The earth revolves around the once every 365 1/4 days. As the earth revolves different locations on the earth receive more or less direct sunlight. This is because the earths axis is tilted |
| What causes the seasons to change | Because the earths axis is tilted and it revolves around the sun. So when the northern hemisphere is facing the sun it is getting more direct sunlight than the southern hemisphere (vice versa). Whoever gets more sunlight gets higher temps. |
Created by:
keira
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