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...

Young scholars create a model of the USDA's Food Pyramid Guide, using shoe boxes. They bring an assortment of shoe boxes from home. Students are given a copy of the "Food Guide Pyramid." They wrap boxes for the bread group in white, the...

This reading is an introduction to the great variety of steroids and their many different uses.

The element lead is a neurotoxin that is particularly dangerous to young children. Among other uses, lead compounds were common paint additives until being phased out for safer titanium-based additives beginning in the 1960's. Lead...