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Cleaning with Dirt
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Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.

Caution! Wildlife Crossing
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In this design challenge, learners use their creativity and imagination to design and test a wildlife crossing for their favorite animal.

Highway Seismograph
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This is an activity that models the operation of a seismograph, a tool used to measure the size of earthquakes.

The Scoop on Habitat
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Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.

Earth's Energy Cycle: Albedo
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In this activity, learners experiment and observe how the color of materials that cover the Earth affects the amounts of sunlight our planet absorbs.

Radioactive Decay of Candium
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In this simulation, learners use M&M™ candy to explore radioactive isotope decay.

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.

Mold Mole Molds
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In this activity, learners make different shapes that hold exactly one mole of gas (air).
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.

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.

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.

The Great Plankton Race
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In this activity, learners are challenged to design a planktonic organism that will neither float like a cork nor sink like a stone.

Exploring the Solar System: Mission to Space Board Game
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In this tabletop board game, players will represent a team of scientists and engineers sending a spacecraft on a mission to space.

Tabloid Science
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In this activity, learners analyze a fictionalized report of life on Mars, based on a real NASA satellite photo, and explore how to separate scientific fact from fiction.

Particle Detection
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By tossing, collecting, and sorting beanbags, learners understand how the IBEX spacecraft uses its sensors to detect and map the locations of particle types in the interstellar boundary.
Cycles in the Cards
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In this "game," learners explore and relate the evolution of stars to a Navajo creation story. The story is written on a series of cards, which are laid on a table as the story is told.

Chocolate Lava
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In this yummy earth science activity (page 5 of the PDF), learners use fudge to learn about different kinds of lava.

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.

The Carbon Cycle Game
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In this activity, learners take on the role of a carbon atom and record which reservoirs in the carbon cycle they visit.

Air Cannon
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In this activity, learners create air cannons out of everyday materials. Learners use their air cannons to investigate air as a force and air pressure.