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In this activity, learners use multiple thermometers, placed at different angles, and a lamp to investigate why some places on Earth's surface are much hotter than others.

This fun and simple hands-on astronomy activity lets learners create 3D models of the Earth, Moon and Sun to demonstrate solar and lunar eclipses.

In this activity, learners use their imaginations and experiment with different materials to create bug hats.

In this colorful activity (page 6 of the PDF), learners will make a multicolor density column by using different concentrations of sugar solutions.

In this activity, multiple learners will use a game with ballloons to learn about coqui frog behavior.

In this activity, learners will build a simple electromagnet. They will test variables that would make the electromagnet stronger.

In this yummy biology activity (page 3 of the PDF), learners participate in a demonstration of natural selection.

In this water activity, learners discover ways to move water across the water table.

This activity was designed for blind learners, but all types of learners can explore the three states of matter by examining tactile models that illustrate the characteristics of particles in each sta

Can you think of ways to collect and dispose of spilled oil without causing further harm to the environment?

This activity was designed for blind learners, but all types of learners can explore the process of extrusion used to produce pipes and wires in industry.

In this physics activity, learners build their own rockets out of film canisters and construction paper.

In this activity, high voltage is applied across a pickle to emit a yellow glow. This activity should only be conducted by skilled adults and is best suited as a demonstration.

In this activity, learners discover the difficulty of ocean exploration by human beings as they investigate water pressure.

In this design challenge activity, learners invent a device that will make their friends and family ask, "What's buzzing?" Learners design an alarm with an on/off switch that is small enough to hide.

In this activity about magnetism (page 15 of the PDF), learners will explore how opposite and similar magnetic poles affect a swinging (pendulum) magnet.

In this activity about transfer of energy, learners get to build their own catapult using nothing more than a plastic spoon and some tape.

During this activity, learners will make different versions of "ooze" using varied proportions of detergent and glue.

In this activity, learners will make fish cutouts that propel through the water with the help of surface tension.

In this activity, learners will observe magnetic properties and sort objects by them. This activity uses everyday items to teach learners about magnetic forces, poles and properties of magnets.