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Resistance is Useful
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Learners write or draw with white crayon on white paper. They look and feel to detect their marks on the paper. Then, learners paint over their paper with watercolor paint.

Apples with Appeal
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In this activity, learners investigate why apples turn brown. Learners discover that lemon juice interferes with the reaction that causes the browning.

Changing the Density of an Object: Adding Material
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Learners see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float.

Protein Factory
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In this activity, learners take on the role of various parts of the cell in order to model the process of protein synthesis.

Soapy Boats
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In this activity, learners will explore surface tension, what it is, and how we can change it.

The Old White Sheet Trick: Light and Insect Behavior
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In this outdoor, nighttime activity, learners gather around a brightly lit, white surface and study the behavior of nocturnal animals attracted to the light, particularly night fliers.

Balloon Kebabs
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In this demonstration, learners observe the effects of density and pressure by attempting to make "balloon kebabs." Learners will try to insert a wooden skewer all the way through an inflated balloon

Shimmering Lenses
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In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.

Breaking the Tension: Surface Tension 1
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Learners explore how the attractive forces between water molecules create surface tension and allow certain objects to float on the surface of water.

Rolling Returns
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In this activity, learners build a special rolling can that returns back to you when you push it forward. Use this activity to demonstrate the transfer of energy between kinetic and potential energy.

Good Stress
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In this activity about physical stress (page 28 of PDF), learners discover that muscles and bones need to work to stay strong.

Mummy Magic
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Make your own mummy! Using a combination of salts, transform an apple into a mummy and discover how the Ancient Egyptians used drying as one step in the mummification process.

Clean Me Up, Snotty
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Learners will explore the chemistry of mucous and its importance to our health by following a process to make their own replica "snot." The activity includes a time and age recommendation, a materials

Finding the Carbon in Sugar
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In this activity about combustion and energy, learners observe a burning candle in a sealed jar and the burning of white sugar.

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.

Cup Towers
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In this activity, learners explore different ways to stack cups to meet a personal goal.

Weather Vane
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In this meteorology activity, learners build weather vanes using straws, paperclips, and cardstock.

Moving On Up: Capillary Action 1
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Over the course of several days, learners explore the property of water that helps plants move water from roots to leaves or gives paper towels the capacity to soak up water.

Production of Carbon Dioxide
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In this chemistry activity, learners use common chemicals to produce carbon dioxide and observe its properties. This resource includes brief questions for learners to answer after the experiment.

Changing Shadows
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In this sunny day, outdoor activity, learners observe changes in shadows over time. The activity also helps to develop a sense of the Earth's motion.