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In this online Flash game, learners will captain a sailing challenge, adjusting boat direction and sails, seeking the way to take greatest advantage of varying wind speeds and directions to catch the

This is an activity about waves. Using marbles, paper clips and rubber bands, learners explore how waves behave.

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

In this activity, learners explore the engineering behind seismographs and how technology has improved accurate recording of earthquakes.

This fun and simple hands-on astronomy activity lets learners explore what happens when a star explodes.

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

In this online Flash game, learners take to the skies in a hot air balloon and are challenged to beat other balloonists' times to the finish line without crashing.

In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.

In this activity (on page 7), learners explore the meaning of a "carbon sink." Using simple props, learners and/or an educator demonstrate how plants act as carbon sinks and how greenhouse gases cause

In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.

In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp desk lamp with an incandescent bulb and a stack of glass plates.

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 game, learners walk through an imaginary Carbon Cycle and explore the ways in which carbon is stored in reservoirs and the processes that transport the carbon atom from one location to another

In this online Flash game, learners test their engineering know-how, moving a collection of mechanical parts onto a board to make complete a system of parts that will move a ball from start to finish.

This simple and engaging astronomy activity explains nuclear fusion and how radiation is generated by stars, using marshmallows as a model.

This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.

In this thought-provoking activity, learners plan a hypothetical project to build and operate wind turbines in their community.

This kinesthetic science demonstration introduces learners to four states of matter: solid, liquid, gas, and plasma.

MarsBound! is an engineering simulation activity in which learners use realistic techniques to plan a mission to Mars.

In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.