Science

4. The physical appearance or visible traits of an organism.
6. The outermost, thinnest layer of the Earth.
7. The process where new oceanic crust is formed through volcanic activity.
9. Vibrations that travel through Earth carrying the energy released during an earthquake.
10. Fractures in Earth's crust where rocks on either side have moved past each other.
11. The thicker, older, and less dense part of Earth's surface that forms land.
12. The force exerted by magnets when they attract or repel each other.
16. The scientific study of heredity and how traits are passed down.
18. The relatively thin part of the earth's crust that underlies the ocean basins.
19. The ancient supercontinent that included almost all of Earth's landmass.

1. The solid, extremely hot center of our planet.
2. The force that opposes motion between two surfaces that are touching.
3. The genetic makeup or code of an individual.
5. An underwater mountain range formed by plate tectonics.
8. The universal force of attraction between all matter.
13. The thick layer of hot, solid rock located between the crust and the core.
14. The only liquid layer of the Earth, responsible for the magnetic field.
15. A measure of the amount of matter in an object, usually measured in kilograms.
17. In physics, a push or a pull upon an object.
20. A segment of DNA that acts as the basic unit of heredity.