1. List # 9

2. Inertia Objects at rest will remain at rest, objects in motion continue in motion Newton’s First Law of Motion !!

3. Inner Core Earth’s center, it has a radius of 1200 km, and it is thought to be solid

4. Igneous Rock Rock formed by the cooling and hardening of hot, liquid rock material (lava or magma)

5. Ingestion The process of taking in food…eating

6. Humidity Amount of moisture present in the atmosphere

7. Hurricane Huge, rotating storm forming over the ocean, bringing wind and rain

8. Infectious Disease Disease caused by microorganisms that can be transmitted easily Ex. whooping cough

9. Hydrosphere The liquid part of the earth Ex. oceans, glaciers, lakes

10. Insulator A material through which electricity cannot flow

11. Insulation Material used to reduce or slow the flow of heat from one area to an other

12. Joint A place where one bone is connected to another one

13. Inclined Plane Simple machine consisting of a flat surface with one end higher than the other A ramp is an inclined plane!

14. Hydroelectric Energy Energy produced by using energy of flowing water to turn the turbines of a generator

15. Insoluble Not able to dissolve in a given solvent The oil will not dissolve in the water.

16. Involuntary Muscles Muscles that we do not consciously control

17. Good Luck on this week’s test!