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In this activity, learners conduct a series of hands-on experiments that demonstrate how the working of plants' veins, known as capillary action, enables water to travel throughout the length of a pla

In this wintertime outdoor activity, learners role play wolves tracking their prey by following scented trails.

This activity shows you how to make a mold terrarium using a jar and leftover food.

In this outdoor activity and/or field trip, learners investigate the behavior of hopping animals.

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

In this activity about light and reflection, learners discover that what you see is often affected by what you expect to see.

In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.

In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.

In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.

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

In this activity, learners model directed evolution by making paper fly. Learners construct and fly paper airplanes.

In this health activity (page 5 of the PDF), learners will explore a unique connection betweeen the bones of the body.

In this activity on page 4 of the PDF, learners investigate the importance of washing their hands.

In this matching game, learners study the limits of life on Earth to see what other places in the solar system might sustain microbial life.

This activity (on page 3 of the PDF under GPS: Animal Scent Activity) is a full inquiry investigation into animal behavior.

In this activity about neuron/target muscle recognition (page 44 of the PDF), learners arranged in two rows facing away from each other use string to simulate neural development.

In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon dioxide.

In this activity, learners create an electrical circuit and investigate how some dissolved substances conduct electricity.

In this simulation, learners explore how ocean currents spread all kinds of pollution—including oil spills, sewage, pesticides and factory waste—far beyond where the pollution originates.