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Solving Dissolving
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The Sacred Cenote at Chichén Itzá is a sink hole, or well, containing groundwater. In this activity, learners create their own cenote using chalk, limestone, acids, and rain water.

Blast Off!
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Students design and create their own air-powered rockets, in this hands-on activity.

A Flag for Your Planet
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In this activity, learners design a flag for a chosen or assigned planet. The instructions include information about flags on Earth, and a list of flag references.

Zig Zag Bopper
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In this activity, learners build a machine made of craft sticks to multiply the levering motion of their hands and create a device that bends and extends.

Marble Game
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In this activity, learners construct a simple game to test their hand-eye coordination and steadiness of hand.

Polymers are Chains (K-2)
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In this activity, learners make a paper model of a polymer, then make Silly Putty, an actual polymer.

Animal House
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The goal of this activity is to design, build and test a house or toy for an animal.

Eye Spy
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This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.
Soaring Towers: Building with Recycled Materials
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In this activity, learners will build the highest tower they can out of recycled materials.

The Poor Cartographer: Graph Coloring
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In this activity, learners help a poor cartographer color in the countries on a map, making sure each country is colored a different color than any of its neighbors.
How Many In a Minute
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In this activity, learners will keep track of how much they can do in one minute. Instructors can pick something everyone will do for a minute, such as jumping up and down or drawing stars.

Motor Bird
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In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

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

Chain Reaction II
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In this hands-on activity, learners use an assortment of (mainly household) items to complete Rube Goldberg-type challenges.

The Desert Blooms!
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This activity attempts to clear up the common misconception that deserts are always hot, totally dry, and uninhabitable.

Sound Representation: Modems Unplugged
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In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video.

Ice Cream Shake
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In this tasty activity, learners make their own ice cream any day of the year in an exploration of heat and cold. Highlights include freezing and melting and the transition from liquid to solid.

Bird Feeder
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In this outdoor activity, learners construct bird feeders and set them up at to investigate bird behavior for one or two weeks. Multiple feeder designs are suggested.

Pósteres Sobre Animales y Matemáticas
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Exponga estos pósteres en el salón o déjelos donde los chicos los puedan explorar. Los chicos buscan las respuestas en libros de consulta o en línea.

Blow It Away
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In this activity, learners design wind-powered cars out of simple household materials. Students have fun designing and then racing their vehicles around the room.