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Tiny Geyser Models
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In this activity (located on page 2), learners will construct tiny model geysers out of film canisters, warm water, and antacid seltzer tablets.

Float Your Boat
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In this physics activity, learners will explore buoyancy.

Invent on the Spot
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In this activity, learners design a device to solve a problem: how to get a ball out of a drain pipe.

Witches' Potion Demonstration
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In this chemistry demonstration, learners will discover that phenolphthalein is an acid/base indicator. One learner will read a poem about four witches making a potion.

Feel the Heat
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In this design challenge activity, learners design and build a solar hot water heater. Their goal is to create a heater that yields the highest temperature change.

Suminagashi: Floating Ink Paper Marbling
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In this activity, learners try to float ink on the surface of water to create a pattern and then capture it with absorbent paper.

Charge Challenge
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In this activity, learners explore how objects can have positive, negative, or neutral charges, which attract, repel and move between objects.

Heating and Cooling of the Earth's Surface
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Learners conduct an experiment to determine the rate at which two materials, sand and water, heat up and cool down.

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.

Amphibian Skin
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In this activity, learners explore the concept of permeability to better understand why amphibians are extremely sensitive to pollution.

Weather Stations: Storms
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In this activity, learners test how cornstarch and glitter in water move when disturbed. Learners compare their observations with videos of Jupiter's and Earth's storm movements.

Push It Out
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In this physics related activity which requires adult supervision, learners make their own powerful water rocket and, with it, explore Newton's Third Law of Motion.

Out of Control
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In this outdoor activity, learners release a portion of a lawn from human control—no mowing, no watering, no weeding, no pest control—and then investigate the changes that result over several weeks.

Tools of Magnification
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In this activity related to microbes, learners use water drops and hand lenses to begin the exploration of magnification. This activity also introduces learners to the microscope.

Plaster Casts
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In this activity, learners combine two substances (plaster of Paris and water) to make a cast of an object's imprint in clay.

Bone Basics
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This is an activity (on page 2 of the PDF under Bone Regrowth Activity) about the two main components of bone - collagen and minerals (like calcium) - and how they each contribute to its flexibility a

Why Circulate?
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In this activity related to the human circulatory system (on page 10 of the PDF), learners observe the dispersion of a drop of food coloring in water, draw conclusions about the movement of dissolved

Potion Commotion
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In this hands-on science experiment, students combine their understanding of the different states of matter and the characteristics of various chemical reactions.

Spaghetti Strength
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In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.

Sugar Crystal Challenge
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This lesson focuses on surface area and how the shape of sugar crystals may differ as they are grown from sugars of different coarseness.