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In this activity, learners make models representing bones on Earth and bones that have been in space. They discover what happens to bones without proper exercise and nutrition.

In this math activity, learners estimate how many pennies are in a jar by predicting and counting handfuls of pennies.

Learners make a simple battery out of "sandwiches" of aluminum foil, pennies, and a salt water-soaked paper towel.

In this activity, learners explore clouds and how they form.

This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.

This activity helps learners learn about math through a real-world scenario. Three friends are baking cookies for their school’s bake sale.

In this math game, learners solve a mind-twisting puzzle using dominoes. Use this activity to help learners practice counting, adding, and solving problems.

In this math puzzle, one player hides a rainbow of four colors while another player tries to guess the hidden rainbow colors in the correct order.

In this math activity, learners trace their hands and estimate the number of beans that can fit into their hand tracings. Then, learners glue the beans to the tracing to test out their estimations.

The demonstration/experiment provides quick proof that air has mass.

In this math activity, learners pretend there is a special store that lets you pay for toys by their height in pennies.

In this activity, young learners use different-sized paper 'caterpillars' and various household items to predict and measure their height.

In this hands-on activity, learners use toothpicks to build different triangles and squares and then use the toothpicks to build and solve some tricky shape puzzles.

This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.

In this activity, learners "go fishing," then practice ruler use and size/pattern comparison with the animals they catch.

In this quick activity, learners observe how wind creates ocean currents.

In this activity, learners observe, explore and investigate vibrating instruments in everyday places and create music in unique ways.

In this activity, learners work in pairs to measure each other's ankles with lengths of string.

Use multiplication to help the aliens find out how much fuel they need to get their spacecrafts home.

This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.