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Learn About Measurements Using a Homemade Scale
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In this activity, caregivers and young learners work together to make a scale from household materials to compare different weights--an essential principle in early math.
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Great Openings: Slots, 35 Sense, and Hole In One
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These three short activities challenge groups to fit objects through paper and index cards: "Slots" presents the challenge for one learner to figure out which objects fit through a hole cut by another
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Set It Straight
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In this activity, learners build a simple tabletop seesaw to test how different variables (the position of the fulcrum, distance, weight) affect its balance under increasing weight loads.
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Disappearing Statues
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In this activity (on page 8), learners model how marble statues and buildings are affected by acid rain.
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Paper Bridge
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In this engineering activity, challenge learners to construct a paper bridge that can support 100 pennies.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-210.png?itok=bHJEAgI_)
Under Pressure
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In this simple activity, learners discover how a mere piece of paper can be used to hold up the weight of a heavy book.
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Train Your Brain
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In this activity, learners play a trick on their own brain to see if the brain can learn to ignore distracting input. Colors and words are used to play the visual trick, known as a Stroop Test.
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What's the Buzz?
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In this activity, learners construct a playable kazoo from inexpensive materials. They will experience how vibration creates sound waves and music.
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Motion Picture
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During this hands-on activity, learners are briefly exposed to moviemaking and animation, when they create their own thaumatropes.
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Fingerprints
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In this activity, learners examine their fingerprints and learn that they can be categorized by shape, but each fingerprint is unique.
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Hang Time
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Learn how to make and fly a paper helicopter! This simple activity includes a template (for the copter "blades") and instructions for folding, flying, and testing designs.
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Make a Shaker
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This hands-on activity shows you how to make a shaker -- a small instrument with a big sound! Fill it with beads or even pennies for a cool sound.
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Stack 'Em Up
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In this simple and fun activity, learners build a tower of cups to explore distribution of weight. Learners make predictions about their towers and test their designs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-209.png?itok=L4CI__ys)
Screaming String Thing
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In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials.
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Exploring Size: Powers of Ten
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In this activity, learners play a card game that explores the relative sizes of various objects. Learners compete to organize their hand of cards into lists of objects from largest to smallest.
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Super Golf Tower
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In this engineering activity, challenge learners to build a tower out of 10 sheets of newspaper and 3 feet of masking tape, which can hold a golf ball balancing at the top.
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Frijolitos
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Esta actividad enseña la proporción y razón por hacer que los aprendices hagan "ensaladas" que combinan tres tipos de frijoles en tres combinaciones diferentes.
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Pop Rockets
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In this activity, learners make film canister rocket ships. A fin pattern is glued onto the outside of the canister, and fuel (water and half an antacid tablet) is mixed inside the canister.
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Honeycomb Geometry
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In this activity, learners will build a honeycomb. Learners will investigate how the shape of the honeycomb develops. Activity includes step-by-step instructions and extension ideas.
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Thaumatropes
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In this activity, learners will make a thaumatrope, an old-fashioned optical illusion that dates back to the 1820s.