Why are muscles important? Third graders study the different kinds and functions of muscles in the human body. After drawing arrows in an illustration to indicate where a muscle contraction would occur, they do their own experiment about...

In this science worksheet, students investigate the human skeletal system. Students read factual paragraphs with details about the bones in the human body and in some other species as well. Students complete a crossword puzzle.

How do bones help people move around? A science investigation prompts kids to draw arrows to certain bones that protect their organs. After they finish, they trace their hands on a piece of paper and trace the way their bones go. Great...