Students describe and identify the link between land use activities within a watershed and water quality. They evaluate the quality of a "water sample" ( a bag of skittles), graph their results, and form a hypothesis about the land use...

In this crossword puzzle worksheet, 7th graders read the definitions that relate to the protista kingdom and then complete the crossword puzzle.

Very systematic breakdown of the animal kingdom starting with the simplest type the sponge, all the way to the chordate or vertebrate. Each phylum has a link with information.

[Free Registration/Login Required] This is a lesson on classifying invertebrates based on their observable features. It focuses on the three types of worms: flatworm, roundworm, and segmented worm. The lesson contains 3 videos as well as...

An animated adventure story, developed by NASA, that helps children understand earth science concepts by using satellite photography and other types of aerial photographs to identify physical features on the surface of the earth. Teaches...