Inside the Earth 2020

3. As an object heats up its density is ____ and it floats.
5. The largest layer of the Earth.
6. The kind of rock that makes up the continental crust is called?
10. The process of going under another continent is called.
11. ____ are an example of indirect evidence that scientists use to learn about the inside of the Earth.
12. Earthquakes produce ____ waves that scientists use to study the inside of the Earth.
13. An example of radiation is ____ that we feel outside every day.
17. The middle of the Earth is called the.
18. _____ samples are an example of direct evidence that scientists use to learn about the inside of the Earth.
19. We think the heat that causes the convection currents in the mantle comes from the Earth's ____.
20. The outer core of the Earth is in this phase of matter.
22. Hot things become less dense and _____ in a convection current.
23. At the mid-ocean _____ new crust is made.
26. Heat transfer by mixing of hot and cold fluids.
27. The layer of the Earth we live on.

1. As an object cools down its density ______ and it falls.
2. The kind of rock that makes up the oceanic crust is called?
4. The process of new crust being made is called sea-floor______
7. The part of the mantle that is the soft part where convection currents occur.
8. The name for the single landmass millions of years ago.
9. One of the pieces of evidence that Wegener had suggested that the continents had moved.
14. As you go deeper into the Earth both temperature and pressure ____.
15. At the _____ old crust is pulled under the less dense crust.
16. Heat transfer by touching.
21. This is a kind of evidence that you can see and touch.
24. The layer of the core we think is a solid iron ball.
25. The measure of an object's mass and volume is called?