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Start a Rock Collection
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Learners follow a three-step process to start their own rock collection.

How Can Gravity Make Something Go Up?
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In this activity, learners use cheap, thin plastic garbage bags to quickly build a solar hot air balloon. In doing so, learners will explore why hot air rises.

Observing Earthworm Locomotion
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In this activity, learners collect worms and then observe how they move.

Kidbots
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In this activity, one person acts as a human robot while another acts as their developer by programming their actions.

Take It in Stride
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In this health and fitness activity, learners focus on the importance of daily physical activity, specifically walking.

Shake a Shrub
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This is an activity where learners will discover what types and how many insects live in their own backyard.

Planaria Fishing
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In this activity, learners capture and observe planaria, which are worms that eat tiny pond critters.

Using a Simple Astrolabe
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In this activity, learners use an astrolabe to measure the altitude of objects. Learners will first practice taking measurements by measuring the altitude of trees and buildings.

Sandy Samples
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In this collecting/comparing activity, learners work with samples of sand from different places like a lakefront, river, or ocean beach.

Is It Living?
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This activity (on pages 10-12 of the PDF) encourages learners to consider what makes living things different from non-living things.

Styrofoam Traps
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In this activity, learners use Styrofoam to collect organisms from a pond, estuary or marine environment and then examine what they have caught with a microscope.

Finding the Size of the Sun and Moon
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In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

Make Your Own Barometer
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In this weather activity (page 10 of the PDF), learners will demonstrate the changes in atmospheric pressure by constructing their own barometer.

A Slice of Apple Fly
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In this activity, learners build an instrument for catching and observing flies. Learners act as entomologists, attract flies into a jar using a slice of apple, and then observe the flies' behavior.

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

Can Energy be Created or Destroyed?
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In this activity, learners explore conservation of energy by experimenting with a solar cell light device.

Personal Pinhole Theater
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Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

Portable Sundial
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Learners construct one or more of the following kinds of sundials: a shadow plot, a horizontal sundial, and a diptych sundial.

Polarized Sunglasses
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In this activity, learners explore how polarizing sunglasses can help diminish road glare.

Weather Vane
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In this meteorology activity, learners build weather vanes using straws, paperclips, and cardstock.