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Lean, Mean Information Machine: Using a Simple Model to Learn about Chromosomal DNA
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Learners observe a model of a cell and its chromosomal DNA made from a plastic egg and dental floss. Use this model to illustrate how much DNA is held in one cell.

Perspectives: Powers of 10
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In this activity, learners complete a series of drawing activities to explore scale and powers of 10. Learners first trace each other on 1-meter-square pieces of paper.

Baroreceptor Reflex Role Play
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In this activity about the baroreceptor reflex (BR) arc (page 123 of the PDF), learners discover the importance of maintaining adequate arterial blood pressure through a role playing exercise.

Edible Model of the Sun
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In this activity, learners make "solar cookies," edible models of the Sun's outer layers using sugar cookies and toppings.

Caution! Wildlife Crossing
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In this design challenge, learners use their creativity and imagination to design and test a wildlife crossing for their favorite animal.

Surface Area
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In this demonstration, learners discover that nanoparticles behave differently, in part because they have a high surface area to volume ratio.

Seeing 3D
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Create 3D glasses and use them to explore color, light and optics. Fool your brain into 'seeing' three dimensions on a flat surface!

Hot Equator, Cold Poles
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In this activity, learners use multiple thermometers, placed at different angles, and a lamp to investigate why some places on Earth's surface are much hotter than others.

String Genome
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In this biology activity (page 5 of the PDF), learners use yarn and sticky labels to build a model of a DNA strand. They discover that DNA is very long, very skinny, and packs well into cells.

Goodness Gracious! Great Balls of Gluten!
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This is an activity about a very important ingredient in most baked goods - gluten! Why is gluten so important? Without it, there would be nothing to hold the gas that makes bread rise.

Cupcake Delivery
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In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.

Find the Fat
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Fat is a very important component in our diet. It's the most efficient source of energy in our bodies, and plays an important role in the flavor of foods.

Better Hair Through Chemistry
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In this activity, learners hook up a hair to a lever system and create a hair hygrometer to measure changes in humidity.

Invisible Ink Demonstration
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In this chemistry demonstration, learners will discover that phenolphthalein is a chemical that displays different colors depending on the acidity or basicity of the environment.

Nature Painting
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In this activity learners will create paint out of natural materials. Explore your natural world (or your fridge) and find berries, leaves, or flowers to find a great base for your paint.

Separation Anxiety
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In this activity, learners discover the primary physical properties used to separate pure substances from mixtures.

Exploring Products: Nano Sand
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In this activity, learners explore how water behaves differently when it comes in contact with "nano sand" and regular sand.

Our Sense of Sight: Color Vision
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In this activity, learners investigate color vision as well as plan and conduct their own experiments.

Two Washers
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In this activity, learners create a mind and math puzzle that requires a three-dimensional solution.

Planaria Regeneration
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In this experiment with planaria (a type of flatworm), learners will investigate the capability of different body sections to regenerate.