Renewable, recyclable, and biodegradable. As part of their study of the forest ecosystem, class members read "Nature's Treasure Chest" about the many products made from trees and then craft their own recycled paper.

What makes particles attract? Here, learners engage in multiple activities that fully describe colligative properties and allow the ability to critically assess the importance of these properties in daily life. Young chemists...

Sometimes the best way to understand a concept is to break it down. Young vocabulary pupils work with word parts in a hands-on activity that prompts them to connect flash cards with affixes to their root and base words....