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Dancing Raisins
Source Institutions
In this activity, learners will explore density and it's relationship with mass.
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Klutz-Proof Density Column
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Making liquids of different densities to perfectly lay on top of each other can be a frustrating exercise. The Exploratorium created this activity as a fool proof way of making a density column.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-325.jpg?itok=qGcNBjE_)
Paper Cup Stool
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In this activity, learners will explore how and why weight distribution works.
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Strong Shapes
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Is a square stronger than a triangle? Use tongue depressors to build simple shapes. Then apply a little weight to them and see what happens!
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Anti-Sound Spring
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What happens when two wave pulses meet in the middle? Send waves down a spring to watch them travel and interact.
Size Them Up: Learning About Volume and Capacity
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In this activity, learners will put a set of containers in order by capacity. Would the tallest container hold more or less water than the wide, short one?
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Take Out the Trash
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Learners explore how recyclers take advantage of the different properties of materials, such as magnetism and density, to separate them from a mixture.
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Circuits with Friends
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In this activity, learners explore the parts of a circuit by modeling, as a group, a “human” circuit.
Fair Shares: Predict Equal Shares
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Use this activity to build division and number sense into any snack time or whenever there is a limited set of things to share among a group: If we deal these out, could everyone get two pieces?
Penny Jar: Estimating for Charity
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Learners will collect pennies to donate and will combine charitable giving with estimating and calculating with money. To start choose a charity or something to save up for together.
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Crystal Painting
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In this activity, learners will "paint" their own crystal artwork by creating a picture with a super saturated salt solution.
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Constellation Scope
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In this activity, young learners explore the basic shapes of constellations by making their own scope out of a cardboard tube and paper with pinpricks.
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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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Sound Representation: Modems Unplugged
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In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video.
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Fish forms
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In this activity, learners create a three-dimensional sculpture while examining the characteristics of fish.
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Why Does Food Spoil?
Source Institutions
In this activity, learners will conduct an experiment to discover methods of reventing foot mold growth on food.
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Are Microbes Alive?
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In this activity (on pages 19-21 of the PDF) learners observe mold growing on potatoes. Preparation for this activity has to start a week before, to allow time for the mold to grow on the potatoes.
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Making Waves
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Investigate the interaction of liquids of different densities and experiment with wave patterns with this hands-on activity.
Shadow Puppets
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If you have lights, cardboard, scissors, and some brass fasteners, you can make shadow puppets! Create a story-telling and design challenge for your learners with this simple and creative activity.
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Nosedive
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This is a great activity for investigating the basics of lift and drag as they pertain to flight. Learners will discover how to avoid "taking a nosedive" by building their own paper airplane.