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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.

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

What Shape Is It?
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In this activity, learners determine the shape of an unseen object by bouncing a ball off the object.

LEGO® Chemical Reactions
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This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes).

Chemistry in the Kitchen
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In this kitchen chemistry activity, learners explore the chemistry of crystals by making sugar crystals, consider a common chemical reaction type responsible for the rising of muffins and cake in the

Gas Model
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This highly visual model demonstrates the atomic theory of matter which states that a gas is made up of tiny particles of atoms that are in constant motion, smashing into each other.

Radioactive-Decay Model: Substitute coins for radiation
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Get a roll of pennies, throw them on the ground, then remove those that only show tails, and repeat with the ones left over.

Below the Surface: Surface Tension II
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In this activity learners explore surface tension. Why are certain objects able to float on the surface of water and how do detergents break the surface tension of water?

Size and Scale: Probing and Predicting
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In this quick activity about predicting (located on page 2 of the PDF under Where's Nano?

Fast Rusting
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In this activity, learners conduct an experiment to find out if steel wool will weigh more or less when it is burned. Learners will explore the effects of oxidation and rusting on the steel wool.

Carbon Configurations
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In this activity, learners use geometry to predict the shape of carbon. Learners twist and attach chenille stem pieces that represent bonds between different carbon atoms.

Defining Dissolving
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In this introductory activity, learners discover that sugar and food coloring dissolve in water but neither dissolves in oil.

Copper Caper
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In this activity, learners conduct an oxidation experiment that turns old pennies bright and shiny. Learners soak 20 dull, dirty pennies in a bowl of salt and vinegar for five minutes.

Pea Brain!: Explorations in Estimation
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In this activity, learners use two different techniques to estimate how many little things fit into one bigger thing.

Curie Point
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In this activity best suited as a demonstration, learners observe that when a piece of iron gets too hot, it loses its ability to be magnetized.

Production of a Gas: Controlling a Chemical Reaction
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Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles.