How Sweat Glands Cool Your Body

Students identify the various parts of the body that serve as wedges and levers, identifying the fulcrum for each body lever. They bite into carrots and apples to analyze how their jaws and teeth work, then complete three worksheets that...

Strengthen understanding of the musculoskeletal system with a structured lesson! Begin with a discussion of bones, joints, and muscles. Have small groups read assigned articles and watch videos to gather information and then write a...

Do you know how much water you have had in the last 24 hours? Do you know how much your body needs? In this hands-on activity, your class members will estimate how much water our bodies lose each day by filling and emptying one-liter...

Students explore the drawings of Rube Goldberg to design and construct a simple machine. They discuss simple machines, and using various materials and toy parts, design and construct a "Rube Goldberg" style machine to ring a bell.

Fourth graders explore evaporation by conducting an experiment.  In this water properties lesson, 4th graders examine the differences between two socks that get wet, one which is placed in front of a fan.  Students discuss why...

Take an elevator down under the surface of the skin! Animations show that new skin cells are formed and the old ones are shed in the epidermis, how melanin provides color and nerves and blood vessels reside in the dermis, and what the...

Through inquiry and exploration, 4th graders will learn and understand the functions of open and closed circuits. They will break into 2 groups, define vocabulary, hypothesize how to light a bulb, then test their hypothesis 4 different...

Did you know that your body has a built-in cooler? And it might not be what you think. Sweat is produced when you are hot, but its purpose is actually to cool your body as the water in it evaporates from your skin. In this science fair...

Students compare and contrast simple machines and their functions. In this cross-curriculum science simple machines lesson, students observe examples and read about simple machines, then use body movement to demonstrate how machines...

Here is one of the better Spangler episodes. Two young girls perform an experiment that results in the creation of a lava lamp! Water, oil, Alka Seltzer, and food coloring are combined in test tubes to create this effect. There is a lot...