Science Terminology

4. the study of the celestial objects, space, and the physical universe
8. a substance that cannot be broken down into any smaller pieces and still maintain its basic properties
11. the study of life
12. a spherical object that orbits a star and has cleared out its orbital path
14. the accepted belief that the Sun is the center of our solar system
16. the amount of matter in an object
18. another term for air resistance
21. the constant rate an object falls at when gravity matches the object's air resistance
22. the resistance one object experiences when moving over a surface or through a medium

1. the belief that the Earth is the center of the universe
2. the rate at which something moves in a particular direction
3. a push or pull on an object
5. a celestial object that orbits a planet
6. to go around a central point
7. the basic unit of life
9. the imaginary line that passes through the Earth from the North Pole to the South Pole
10. branch of science concerned with the nature and properties of energy and matter
13. the ability to do work
15. to spin or turn on an axis
17. the force of gravity pull on an object
19. the smallest unit of matter that has the characteristic properties of a chemical element
20. a force that pulls object towards the center of a mass