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Digestion
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In this food science activity, learners explore digestion and proteins by observing the action of meat tenderizer on luncheon meat.

A Funny Taste
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In this activity, learners explore the different salinities of various sources of water by taste-testing.

Exploring Baking Powder
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In this activity, learners examine baking powder, a combination of three powders: baking soda, cream of tartar, and cornstarch.

Gumdrop Dome
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In this activity (located on pages 23-24 of the PDF), learners are introduced to structural engineering and encouraged to practice goal-oriented building.

Chew that Gum
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In this quick activity (page 1 of PDF under SciGirls Activity: Exercise and Memory), learners will investigate what happens to bubble gum when it is chewed for 5-10 minutes.

A Recipe for Air
Learners use M&Ms® (or any other multi-color, equally-sized small candy or pieces) to create a pie graph that expresses the composition of air.

Radioactive Decay of Candium
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In this simulation, learners use M&M™ candy to explore radioactive isotope decay.

Dunking the Planets
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

Nano Ice Cream
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In this activity/demo, learners discover how liquid nitrogen cools a creamy mixture at such a rapid rate that it precipitates super fine grained (nano) ice cream.

Gummy Shapes
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In this activity, learners use chemistry to “self-assemble” gummy shapes. Learners discover that self-assembly is a process by which molecules and cells form themselves into functional structures.

Wild Sourdough
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In this activity, learners explore chemistry and the microbial world by making their own sourdough starter and bread at home using only flour and water.

Comparing the Density of Different Liquids
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Learners carefully pour vegetable oil, water, and corn syrup in any order into a cup and discover that regardless of the order they are poured, the liquids arrange themselves in layers the same way.

Membrane Permeability with Beets
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In this lab exercise, learners explore diffusion, cell membranes and particle size using beets and three alcohols.

Get the Porridge Just Right
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Learners set up three different bowls, each with a different mass of oatmeal. Learners monitor the temperature of the oatmeal and find that larger masses take longer to cool.

Living Bones, Strong Bones
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In this activity about engineering, nutrition, and physical activity, learners design and build a healthy bone model of a space explorer which is strong enough to withstand increasing amounts of weigh

Ripening of Fruits and Vegetables
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In this activity, learners test the rate of ripening fruit and vegetables and use a chemical to inhibit the ripening process.

Wrap It Up!
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In this Energy and Environment activity (page 9 of the PDF), learners calculate the mass of a piece of gum, compare it to the mass of the gum's packaging, and then create a bar graph of the results.

Having a Gas with Cola
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In this activity, learners measure the amount of carbon dioxide in a carbonated drink.

Ship the Chip
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In this activity, learners explore engineering package designs that meet the needs of safely shipping a product.

Root Beer Float
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In this quick activity/demonstration about density, learners examine what happens when two cans of root beer--one diet and one regular--are placed in a large container of water.