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Leaf Rubbings
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When was the last time you took a really close look at a leaf? In this activity, learners will use leaves and simple materials to make colorful leaf rubbings.

Homemade Bath Fizzies
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In this activity, learners make their own bath bomb fizzies and experience what happens when they mix a base and an acid.

Fish forms
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In this activity, learners create a three-dimensional sculpture while examining the characteristics of fish.

T-Shirt Transformation
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In this activity, learners will repurpose an old t-shirt to create their own yarn or string.

Sketch a Skeleton
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In this activity (on pages 15-18 of PDF), learners make a life-size two-dimensional paper model of their own skeletons.

Symmetry Fold-Overs
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In this math activity, learners experiment with the concept of symmetry.

Butter Up
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In this activity, learners will discover how to make butter from scratch. One optional tips includes adding marbles to speed up the process.

Homegrown Xylophone
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In this activity, learners create music from a series of bottles filed with water. Learners discover that the sound produced by each bottle depends on the amount of water in the bottle.

Squishy Letters
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In this activity, learners will practice writing while making a fun messy craft. Learners will explore texture and color as well as develop writing and fine motor skills through this activity.

Make a Comet on a Stick
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In this activity, learners craft their own model of a comet on a stick to make it fly around the room.

Strong Shapes
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Is a square stronger than a triangle? Use tongue depressors to build simple shapes. Then apply a little weight to them and see what happens!

Make your own Antelope Horns!
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In this craft activity, learners will explore the structure and purpose of antelope horns by constructing their own headband using toilet paper rolls and yarn.

Discovery Time: Trees
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In this activity, young learners (2 years and up) explore tree structure and biology. Tree products are explored by painitng with fruit.

Indicator Paper
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Use grape juice, baking soda, water and vinegar to make acid and base indicator paper! This activity contains a recipe and instructions for the indicator paper.

Bake Ice Cream in Your Oven
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In this a hands-on activity, learners explore how to put ice cream in an oven without it melting. Ideas in this activity include insulation and cooking.
Flesh Out a Fossil
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In this activity, learners discover how artists start with a skeleton and turn it into a realistic drawing of a dinosaur.

Rocket Mice
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In this activity, learners will make a model rocket to test the phrase "what goes up must come down." Learners will power their rockets with air pressure, and soon discover the effects of air resistan

Marshmallow Models
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No glue is needed for learners of any age to become marshmallow architects or engineers.

Paperfolding Polyhedrons
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In this activity (on pages 55-66 of PDF), learners fold paper into origami shapes and then combine several identical shapes into a three-dimensional structure.

Density Rainbows
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In this activity, learners explore the concept of density by pouring 5 different liquids into a jar. Food coloring is added if needed to give each liquid a distinct color.