How much is your toaster costing you every day? Young environmentalists calculate the monetary costs of household appliances based on their average consumption of wattage.

In this geological time line worksheet, students compare the time lines they created of the earth's history to the history of Missouri. They answer questions about the eras, the scale of the time lines and the major events that occurred...

In this classification worksheet, learners complete a chart listing the characteristics of each of six kingdoms. They write definitions for three terms.