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Glowing Tonic
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In this sunny day activity, learners compare how a cup of water and a cup of tonic water reflect or refract light in the sun.

Paper Proteins
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In this activity, learners use an origami template to design eight amino acids. Learners configure the amino acids to form a protein. Use this activity to introduce proteins and amino acids.

Chocolate (Sea Floor) Lava
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In this edible experiment, learners pour "Magic Shell" chocolate into a glass of cold water. They'll observe as pillow shaped structures form, which resemble lavas on the sea floor.

Curious Contraptions
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In this engineering design activity, learners will design, test, and build a “haunting machine” to solve a Sherlockian mystery.

Balloon in a Flask
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Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.

Control a Bird’s Flight
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In this engineering design challenge, learners make a bird and then control its flight with attached strings.

Breathing Yeasties
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Does yeast breathe? Find out by watching how plastic bags filled with yeast, warm water and different amounts of sugar change over time.

Floating Head Cup
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In this activity, learners watch a figure "magically" float up through the air.

How does the Atmosphere keep the Earth Warmer?
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In this activity, learners simulate the energy transfer between the earth and space by using the light from a desk lamp desk lamp with an incandescent bulb and a stack of glass plates.

Sticky Structures
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In this engineering/design/arts and crafts activity, learners design and build "platforms" or "bridges" that can hold weight, and test which glue makes the strongest structure.

Paper Chromatography with Leaves
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In this activity on page 5 of the PDF (Plants—The Green Machines), learners use chromatography to separate and identify pigments within various leaves.

Operation Espionage
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In this activity, learners create and reveal secret messages written with invisible ink! The invisible ink is actually a baking soda solution, and the magical revealing liquid is fruit juice.

What is in the Water?
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In this activity, learners use open inquiry to learn about the process of science as well as gain experience regarding the Law of Conservation of Mass, dissolution, and density.

Bent Toward Science: Refraction
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This is an activity about the behavior of light. Using simple, everyday objects, learners will discover that light moves in straight lines until acted upon by another object.

Grow Rock Candy
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Learners grow sugar crystals (rock candy). They make a hot solution that has an excess of sugar dissolved in it, then as the solution cools, they see sugar crystals form.

Let's Look at Water & the Scientific Method
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This activity has learners observe water and compare it to other liquids.

Rutherford Roller
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In this activity, learners make a black box device that serves as an excellent analogy to Rutherford's famous experiment in which he deduced the existence of the atomic nucleus.

Gray Step
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In this activity, learners discover that it's difficult to distinguish between two different shades of gray when they aren't separated by a boundary.

Instant Ice
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In this activity, learners observe a quick phase change as water rapidly goes from a liquid state to a solid state.

Layered Liquids: Chemistry You Can Drink
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In this chemistry activity (on page 2 of the PDF), learners make a layered drink with liquids of different densities.