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In this activity about dinosaurs, learners first participate in a group discussion about where and when dinosaurs lived, how big they were, and who studies them and how.

In this activity, learners create and reveal secret messages written with invisible ink! The invisible ink is actually a baking soda solution, and the magical revealing liquid is fruit juice.

In this activity, learners will repurpose an old t-shirt to create their own yarn or string.

In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

In this activity, learners explore why animals, specifically dinosaurs, live in families.

Students design and build their own parachutes in this hands-on engineering project.

In this activity, learners act as epidemiologists by mapping the prevalence of HIV/AIDS worldwide.

This reading and writing activity (on pages 2-9) teaches what plant parts should be avoided, how a person can get rid of toxins, symptoms of plant poisoning, and how plants create poisons to repel pre

Learners use shop tools and various materials to construct a magnetic spinner and a compass.

In this math lesson, learners explore probability.

In this Bob the Builder(TM)-themed activity, learners explore the 3Rs (Reduce, Reuse, Recycle) by rotating through several activity stations.

In this delicious activity, learners get to make, taste-test and compare their own "brands" of homemade strawberry ice cream.

In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.

Learners explore capillary action in plants (such as plants ability to move water from roots to leaves) in an investigation called Paper Blooms.

In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.