Across
- 5. model of the solar system where the Sun is at the center
- 9. ______ is strongest when objects are more massive and when objects are closer together.
- 11. A ____ shift of light happens when something is moving away from you. Since most distant galaxies are shifting this way, we know the universe is expanding.
- 14. The farther apart the foci the more ________ the orbit will be
- 16. Heat transfer through contact.
- 19. ____ tide occurs when the Sun is pulling at a 90 degree angle to the Moon, so the high tide is lower than normal.
- 21. because the Earth ________ around the Sun, we see different constellations during different times of the year.
- 22. Earth's _____ is tilted by 23.5 degrees (We don't rotate straight up and down).
- 24. Which star type has a surface temperature of 4000 K and a luminosity 1000 times greater than the Sun?
- 25. the Moon's period of revolution _____ its period of rotation
- 27. the _________ planets are Mercury Venus Earth and Mars.
- 30. model of the solar system where the Earth is at the center
- 33. Moon phase during a Solar Eclipse
- 34. when the northern hemisphere is tilted away from the sun it is this season
- 36. The gravity of the _____ controls the tides
- 37. Moon phase during a Lunar Eclipse
- 38. The Sun and stars appear to move through the sky since the Earth _______
Down
- 1. Foucault's ______ proves that the Earth rotates
- 2. part of the atmosphere that absorbs harmful UV rays from the Sun.
- 3. the Sun is directly overhead at the ______ during the fall/spring equinox
- 4. Stars produce energy in their core through the process of nuclear ______.
- 6. the ______ effect causes winds to be deflected to the right in the northern hemisphere.
- 7. when you move through time zones going west it gets _______
- 8. every day at the equator is ________ hours long
- 10. Heat transfer that occurs when heated material moves (circulates) due to density differences (hot material is less dense).
- 11. Heat transfer through light waves
- 12. differences in ______ causes liquids to be sorted (think of a bottle with oil and water in it)
- 13. The Earth rotates 15 degrees per ____. (This means everything in the sky appears to move at this same rate)
- 15. we see the ________ shadows during sunrise and sunset because the Sun is lowest in the sky.
- 17. ____ colors absorb more heat from the Sun.
- 18. when you move through time zones going east it gets _____
- 20. Most of these rocky objects are found between the orbits of Mars and Jupiter.
- 23. Only the ______ stars will one day become black holes
- 26. The _____ Way is the name of our galaxy
- 28. _____tide occurs when the Sun and Moon's gravity pulls the high tide in the same direction, creating extra high tides
- 29. The ______ (height) of the star Polaris is equal to the latitude of the observer.
- 31. during the fall or spring _______, everyone on Earth experiences a 12 hour day and a 12 hour night.
- 32. since Earth's axis is ______ and we revolve around the Sun, we have seasons.
- 35. the _______ planets are Jupiter Saturn Neptune and Uranus