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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.

Family Scavenger Hunt
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In this activity, learners will take a walk with their family and incorporate a scavenger hunt. They will explore topics like ABC’s, numbers, colors, and shapes as they search for related items.

Block Bowling
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In this activity learners will build structures out of blocks and then roll balls to try to knock them down.

Mixing and Unmixing in the Kitchen
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In this chemistry investigation, learners combine common cooking substances (flour, baking powder, sugar, salt, pepper, oil, water, food coloring) to explore mixtures.

Tweak Your Beak
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In this activity, learners will explore how different bird beaks work and discover what birds can eat based on their beak shape.

Opti-Top
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In this activity, learners will create an optical illusion top. Learners will explore color mixing, physics and design through this activity.

Marine Skulls Cart
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In this activity, learners look at and touch marine animal skulls to compare them and think about what they eat.

Exploring Measurement
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In this "Sid the Science Kid" activity, learners use their bodies to measure a room. Instead of inches or feet, how many kids does it take to measure the length of a room?

Tactile Double Trouble
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In this activity (11th activity on the page), learners use their sense of touch to identify matching pairs of objects hidden in bags. Learners can also play this game with partners.

In Proportion
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Through this nutrition activity (page 5 of the PDF), learners will understand—and probably be surprised by—how big serving sizes of various foods should be.

Outrageous Ooze: Is It a Liquid or a Solid?
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This activity provides instructions for using cornstarch and water to make an ooze which has the properties of both a solid and liquid.

COSI Quicksand
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In this chemistry experiment, learners get to make a very bizarre substance using corn starch and water. Is it a solid? Is it a liquid? Or is it a different kind of substance entirely?
Magnus Glider
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A design challenge that takes paper airplanes into an entirely different direction: a magnus glider uses cups and and rubber bands to create a glider that uses the same forces that a curveball (from b

Sand Activity
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In this activity, learners observe mixtures of sand samples glued to note cards, and consider how sand can differ in size, shape, and color, and where it comes from.

Feather Rockets
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In this activity, learners will make and launch feather rockets. Lerners will use science process skils such as making predictions and measuring while launching the rockets.

Dancing Raisins
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In this activity, learners will explore density and it's relationship with mass.

Paper Cup Stool
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In this activity, learners will explore how and why weight distribution works.
Penny Jar: Estimating for Charity
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Learners will collect pennies to donate and will combine charitable giving with estimating and calculating with money. To start choose a charity or something to save up for together.

Atoms and Matter (K-2)
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In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again.

Water Drop Exploration
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In this activity learners will explore how water moves on waxed paper. Learners will use science process skills such as using tools and making observations as they explore surface tension.