Rivers
change the landscape through erosion
O are large bodies of contained water
usually begin in low-lying valleys
are usually found near the poles

Using the periodic table, determine which material is most likely a good conductor

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down