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Why Does the Moon Have Phases?
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In this activity, learners use a simple 3D model to discover why the Moon has phases.

Moon and Stars
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In this craft activity, learners create a string of cut-out moons and stars.

Sunblock Investigation
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In this "Sid the Science Kid" activity, learners set up a simple experiment to find out how sunscreen counteracts the effects of the sun.

Knowing North: Understanding the Relationship between Time and the Sun
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This activity shows how our experience of the Sun changes with time and location. The sun dagger at Chaco Canyon is thought by many to be a sort of ancient timekeeping device.

Shadow Play
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In this three part activity, learners explore and experiment with shadows to learn about the Sun's relative motion in the sky.

The Shadow Knows I
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In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.
Effects of Solar Radiation on Land and Sea
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In this activity, learners explore the different heating properties of soil and water.

The Shadow Knows II
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In this activity, learners will measure the length of a shadow and use the distance from the equator to calculate the circumference of the earth.

Equatorial Sundial
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In this activity, learners make an equatorial sundial, which is simple to construct and teaches fundamental astronomical concepts. Learners use the provided template and a straw to build the sundial.

Cook with a Solar Oven
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In this activity, learners make their own solar oven to bake s'mores and learn about how solar energy is absorbed on Earth.

Ancient Sun Observations
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In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun.

Window Under Water
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Glare from the sun and ripples from the wind can make it hard to see what's below the surface of a body of water.

How does the Atmosphere keep the Earth Warmer?
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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.

Oil Spot Photometer
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In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

Sky Time: Kinesthetic Astronomy
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Through a series of simple body movements, learners gain insight into the relationship between time and astronomical motions of Earth (rotation about its axis, and orbit around the Sun), and also abou

Exploring Shadows
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This activity guide features three related explorations to help learners ages 3-6 investigate shadows via the following science concepts: A shadow is made when an object blocks the light; you can chan

My Angle on Cooling: Effects of Distance and Inclination
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In this activity, learners discover that one way to cool an object in the presence of a heat source is to increase the distance from it or change the angle at which it is faced.