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Students design and create their own air-powered rockets, in this hands-on activity.

In this online activity, learners use a realistic mass and spring laboratory. They hang masses from springs and adjust the spring stiffness and damping.

In this activity on page 5 of the PDF, learners use their knowledge of energy and batteries to create homemade flashlights.

In two separate bags, learners mix water with Epsom salts and detergent.

In this physical sciences activity, learners explore how passive solar design increases energy efficiency.

In this activity learners compare the bounciness of warm and cold racquetballs to see if temperature makes a difference in how well they bounce.

In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

The Let's Do Chemistry "Build a Battery" activity lets participants learn how batteries work and how materials behave, change, and interact by building their own simple battery out of metal and felt w

In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.

In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.

In this design challenge activity, learners build a device to carry a Ping-Pong ball from the top of a zip line to the bottom in four seconds (or less!).

In this activity, learners will build a roller coaster for a marble to run on using everyday household materials such as paper towel or toilet paper rolls, cups, boxes, books, buckets, chairs, etc.

In this activity, learners design wind-powered cars out of simple household materials. Students have fun designing and then racing their vehicles around the room.

In this design challenge activity, learners use two helium-filled balloons to build a blimp that can travel in a straight path across the room.

In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows.

This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.

In this design challenge, learners build a boat that paddles itself using a rubber band as its power source.

In this design challenge activity, learners invent a way to send a Ping-Pong ball flying high enough to catch it - like football with a twist!

In this design challenge activity, learners build a machine that kicks a Ping-Pong ball into a cup lying on its side 12 inches away.

In this design challenge activity, learners build a car that can travel at least four feet using rubber band power and use the design process to debug problems.