Across
- 3. what landform is found at a convergent boundary where oceanic crust is diving down under the continental crust back into the mantle
- 5. Minerals are naturally occurring, have a crystal structure, fixed composition, are inorganic and ______
- 6. the model of the universe where Earth is at the center and all planets revolve around it
- 9. a chunk of ice and rock whose orbits are narrow ellipses
- 11. when the moon is waxing, the moon is lit up from the ______ side
- 12. gravity and ________ keep the planets in orbit around the sun
- 13. when the northern hemisphere is tilted towards the sun it will experience more ______ rays and longer days
- 14. the initial explosion that resulted in the formation and expansion of the universe
- 16. landforms, _______ and climate clues were Wegener's three pieces of evidence for continental drift
- 18. pieces of earth's lithosphere are in slow, constant motion due to convection currents in the mantle
Down
- 1. what separates the inner and outer planets
- 2. the seafloor spreads apart a a mid ocean ridge as new crust is added
- 4. a small chunk of rock from space that hat hit Earth's surface
- 5. this type of rock has been known to contain fossils
- 7. not formed from living things or the remains of living things
- 8. this kind of rock is formed when shale goes under intense heat and pressure and turns into slate
- 10. the model of the universe where the Sun is at the center of the solar system
- 15. minerals are the building blocks of ________
- 17. a ________ eclipse can only happen during a new moon phase