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In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.

In this indoor and/or outdoor activity, learners make an anemometer (an instrument to measure wind speed) out of a protractor, a ping pong ball and a length of thread or fishing line.

In this outdoor, nighttime activity, learners gather around a brightly lit, white surface and study the behavior of nocturnal animals attracted to the light, particularly night fliers.

In this activity, learners explore and compare the buoyant properties of materials found in nature and in human-made materials.

In this activity, learners will trick out their bike with crafts and flair. Learners will explore symmetry, cause and effect and design through this activity.

In this engineering activity, learners will get acquainted with the basics of wind energy and power production by fabricating and testing various blade designs for table-top windmills constructed from

Learners trace, cut out and fly a boomerang, outdoors or in a large indoor space.

An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens.

This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.

This warm weather activity introduces learners to the impact trees have on blocking the sun's heat and reducing temperature on the Earth's surface.

In this activity, learners discuss and investigate how cameras, telescopes, and their own eyes use light in similar ways.

In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

This is an activity to do when there is a solar eclipse!

In this activity, learners use tonic water to detect ultraviolet (UV) light from the Sun and explore the concept of fluorescence.

In this activity, learners create a CloudSpotter wheel and record the different types of clouds they observe twice daily over several days.

This activity (on page 2 of the PDF under SciGirls Activity: Extreme Sounds) is a full inquiry investigation into sound.

In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.

In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

In this activity, learners use binoculars (or a telescope) to identify and track sunspots. If using binoculars, learners need a pair that can be secured on a tripod.