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Two Washers
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In this activity, learners create a mind and math puzzle that requires a three-dimensional solution.

Pinball Wizard
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In this hands-on engineering project, kids use two simple machines, levers and inclined planes, to construct their own pinball machines.

Tug-of-War
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This activity (on page 2 of the PDF under SciGirls Activity: Tug O' War) is a full inquiry investigation into tug-of-war physics. Groups of learners will test two tug-of-war strategies.

Games of Chance and Brains
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In this activity, learners build and play three math games. In the first game, called "Switcheroo," learners place marbles in holes 1 through 4 and 7 through 10.

Reflections
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In this activity, learners play a game and use pattern blocks to explore mirror images and reflection.

Who Can Harvest a Walleye?
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This activity focuses on interactions within Earth systems and the effects of human activities. In this activity learners build a biomass pyramid.

Topological Puzzles
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In this activity, learners construct three math puzzles out of simple materials like wood, string, and Styrofoam.

Probability: Remove One
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In this math lesson, learners are given 15 chips and a number line labeled from 2-12.

North American Endangered Amphibians Card Game
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In this activity, learners can play two card games related to endangered species, specifically North American amphibians.
Piece It Together: Puzzle Hunt
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In this activity, learners follow clues to find five puzzle pieces, then assemble them. This activity works well with a whole group, individuals, or families.

I Don't Think So!
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In this math activity, learners explore probability as they play a game. Learners will categorize everyday events as either impossible, possible or certain.

Hidden Rainbow
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In this math puzzle, one player hides a rainbow of four colors while another player tries to guess the hidden rainbow colors in the correct order.

Fly on the Ceiling
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In this math lesson, learners play two different games to help them understand coordinates. First, learners read the book, "The Fly on the Ceiling," by Julie Glass.

Acting Out
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This activity (on pages 21-32 of PDF) has learners act out several classic brain teasers.

Stem Cell Differentiation Game
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This game uses a modified Uno deck to review concepts related to stem cell research and diabetes.

Sumo
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In this version of a Sumo wrestling bout, players use mathematical skills to move their opponent's counter beyond the track and "out of the ring." Learners reveal playing cards and the player with the

Comparing Fractions War Card Game
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In this math activity, learners practice comparing fractions.

Nice and Nasty
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In this math game, learners throw dice and place the numbers in one of four boxes. Learners repeat this three more times and the learner with the largest four digit numbers is the winner.
What's in the Bag?
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In this activity, young learners use their sense of touch rather than sight to identify a mystery object in a bag. Learners take turns acting as "peekers" and "sensers" throughout the game.

Bike Bling
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In this activity, learners will trick out their bike with crafts and flair. Learners will explore symmetry, cause and effect and design through this activity.