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A Little Drop of Water: Cohesion
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Learners explore water's property of cohesion through two investigations.
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Water Quality and pH Levels in Aquatic Ecosystems
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In this fun and in depth hands-on experiment, learners test various liquid samples (distilled water, lemon juice, vinegar, and baking soda mixed with water) to determine their pH levels and identify e
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Rocket Science
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Learners create a small explosion by collecting hydrogen and oxygen gas together and squeezing them into a flame.
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Atoms and Matter (K-2)
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In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again.
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Got Gas?
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Create gas with a glass of water, some wire, conductors and a battery! You will be separating water (H2O) into oxygen and hydrogen.
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Indicating Electrolysis
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Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator.
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Indicating Electrolysis
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In this activity, learners build a simple electrolysis device. Then learners use an indicating solution to visualize hydrogen and oxygen molecules in water.
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Nuclear Fusion
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This simple and engaging astronomy activity explains nuclear fusion and how radiation is generated by stars, using marshmallows as a model.
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Disappearing Colors
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In this challenge, learners figure out how to make a juice stain disappear.
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The Colors of Flowers
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In this activity, learners perform an experiment to find out what determines a flower's color.
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Single Replacement Micro-Reactions
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In this chemistry activity, learners use common chemicals and metals to explore single replacement reactions.
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Production of Hydrogen
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In this chemistry activity, learners use mossy zinc (or a galvanized nail) and hydrochloric acid to generate hydrogen gas and test some of its properties.
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Gas Producing Micro-Reaction
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In this chemistry activity, learners use common chemicals and metals to examine reactions that produce gaseous substances.
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Having a Gas with Water
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In this activity, learners construct a simple electrolysis device. With this device, learners can decompose water into its elemental components: hydrogen and oxygen gas.
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Cohesion Coin
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In this activity about the property of water (page 6 of the PDF), learners use a coin to demonstrate cohesion between water molecules, exploring the molecular forces that allow water molecules to "