1. Phases of Matter & The Water Cycle

2. Phase The physical condition of an object based on its shape and structure.  state

3. Structure The way the parts of an object are connected to create shape.  form

4. Matter Anything that has mass, takes up space or volume.  stuff

5. Solid An object whose shape and volume do NOT change.

6. Liquid An object with a shape that CAN change and a volume that does NOT change (it will take the shape of its container).

7. Gas An object that takes the shape and volume of its container (both volume and shape CAN change).

8. Heat How much energy is in an object  hot or cold

9. Temperature Measure of how fast molecules are moving TOOL : thermometer Scales: º F º C Kelvin 9/5 T C + 32 = T F T C = 5/9 (T F - 32 )

10. Melting Adding heat Water melting point O ˚ C  solid  liquid

11. Freezing Remove heat Water’s freezing point 0 ˚ C  liquid  solid

12. Evaporation Adding heat (sun) Water … called “boiling” Water’s boiling point 100 ˚ C  liquid  gas “sweat”

13. Condensation Remove heat Forms clouds  gas  liquid

14. Sublimation liquid stage skipped Add heat  solid  gas

15. Deposition liquid phase skipped Remove heat  gas  solid “frost”

16. Ionized Lots of energy added NEUTRALIZATION: plasma  gas  gas  plasma

17. Plasma Electrified gas that gives off light and heat.

18. Transpiration Plants lose water (evaporation) out of their leaves  tree sweat

19. Precipitation Water condenses & the air can’t hold it Clouds form  rain, snow, sleet or hail

20. Accumulation Precipitation falls to earth & collects in oceans, lakes or rivers  build up

21. Percolation Water absorbed  GROUND WATER Ground water seeps into reservoirs, lakes or rivers  soaks in