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The Geophysical Light/Dark Cycle
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This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.

Where Are the Distant Worlds? Star Maps
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This fun hands-on astronomy activity lets learners use star maps (included) to find constellations and to identify stars with extrasolar planets (Northern Hemisphere only, naked eye).

Edible Model of the Sun
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In this activity, learners make "solar cookies," edible models of the Sun's outer layers using sugar cookies and toppings.

The Pulse of Gravity
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In this astronomy activity (page 3 of the PDF), learners will examine the effects of gravity on a person’s pulse and explore how gravity can differ from planet to planet.

Your Age on Other Worlds
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Did you know that you would be a different age if you lived on Mars? It's true!

Why Do Eclipses Happen?
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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.

Delta, Delta, Delta
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In this experiment, learners construct an equilateral triangle using graph paper, a pencil, protractor and ruler. They also make a "laser triangle" using a laser pointer and front-silvered mirrors.

Cosmic Debate
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In this activity described on pages 2-3 of the PDF, participants debate whether there there's life elsewhere in the universe.
The Earth's Timeline
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In this group activity, learners will mark important developments of life on Earth on a timeline (each foot in length representing 200 million years).

Spectroscope
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In this activity (posted on March 12, 2011), learners follow the steps to construct a spectroscope, a tool used to analyze light and color.

Planet Surfing
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In this astronomy activity (page 6 of the PDF), learners will compare and contrast two planets in the solar system using data obtained from the internet.

Toilet Paper Solar System
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In this activity, learners build a scale model of the solar system using a roll of toilet paper.
Up, Up and Away with Bottles
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In this activity, learners make water rockets to explore Newton's Third Law of Motion. Learners make the rockets out of plastic bottles and use a bicycle pump to pump them with air.
Light on Other Planets
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In this math-based activity, learners model the intensity of light at various distances from a light source, and understand how astronomers measure the amount of sunlight that hits our planet and othe

Height Sight
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In this activity, learners build a tool called an inclinometer that can find the height of any distant object, from a tree to the North Star.

Is Anybody Out There?
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Learners listen to and try to decipher a radio message that was sent from Earth to possible intelligent civilizations.

Solar Flare Flip Book
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In this activity, learners make their own flip book that shows real solar flares erupting from the Sun in November 2000. Step-by-step instructions are included with photos.

How to View a Solar Eclipse
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This is an activity to do when there is a solar eclipse!

Exploring the Universe: Space Guess Quest
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Space Guess Quest is a fun game that encourages participants to identify the many types of objects in space, from human-made spacecraft to nebulas, galaxies, stars, and worlds.

3-2-1 POP!
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In this physics activity, learners build their own rockets out of film canisters and construction paper.