Those Vexing Variables

The Mammoth Lakes area regularly releases warnings to hikers and skiers to be careful because melting snow releases trapped gases from volcanic vents. The 17th lesson in the 20-part series opens with a demonstration of carbon dioxide...

Take young geologists on an exploration of the rock cycle with this six-lesson earth science unit on rocks and minerals. Through a series of discussions, demonstrations, and hands-on investigations your class will learn about the...

In this experimental relationship activity, learners read about direct and indirect relationships between variables in experiments. They answer three questions about relationships between variables.

Middle schoolers examine the effects of variables. They view a video which introduces the concepts, take part in an internet-based activity, then engage in a hands-on activity which allows them to practice what they have been studying.

What is an insulator? What materials make the best insulator? Watch as Joanne and Steve conduct a simple experiment to see if a plastic cup insulates better than a styrofoam cup. Make a prediction: which do you think will be the better...

Students explore the concepts that enable them to design and conduct sound scientific experiments. They critique a faulty experiment and become familiar with some of the criteria of a good experiment. They conduct their own experiment.

Learn about radiation, and what everyday items produce radiation, with a series of activities about heat transfer. Kids go over basic information about electromagnetic waves and ionizing radiation before performing several experiments...

An excellent resource on cloud types and descriptions could be a valuable addition to your science lesson. After kids learn the correct vocabulary to describe clouds, they complete several worksheets and thermometer activities before...

In this experimental design worksheet, students are given two experimental scenarios to read. They answer questions about each including finding the hypothesis, the independent and dependent variables and controls. They design a graph...

This is an awesome lesson filled with tons of engaging learning activities. Over a period of weeks learners will make observations, collect plant and analyze plant data, read and review agricultural articles, design and conduct an...