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Engineer an Aeolipile
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In this engineering design challenge, learners build an air-powered spinning machine.
Root Beer Float
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In this quick activity/demonstration about density, learners examine what happens when two cans of root beer--one diet and one regular--are placed in a large container of water.
Ice Fishing
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In this activity, learners will use string and salt to lift an ice cube out of a glass of water. Salt depresses the freezing point of water, allowing it to melt around the string and refreeze.
Leaf Rubbings
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When was the last time you took a really close look at a leaf? In this activity, learners will use leaves and simple materials to make colorful leaf rubbings.
Spinning Blackboard
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Create beautiful spirals by drawing a straight line. This sounds crazy, but you can with a turntable (a record player or lazy susan), paper, and pen.
Making Music in Nature
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In this activity, learners will explore the ways natural materials can produce sounds. Appropriate for any age, learners can make individual music or create a symphony with others.
Exploring Size: Tiny Ruler
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In this activity, learners investigate just how small a billionth of a meter is by attempting to cut a paper ruler down to a nanometer-sized sliver.
Exploring the Universe: Space Guess Quest
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Space Guess Quest is a fun game that encourages participants to identify the many types of objects in space, from human-made spacecraft to nebulas, galaxies, stars, and worlds.
Exploring Materials: Hydrogel
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In this activity, learners discover how a super-absorbing material can be used to move a straw.
Soaring Towers: Building with Recycled Materials
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In this activity, learners will build the highest tower they can out of recycled materials.
Twelve at a Time
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As learners play this game, they build skills in area, perimeter, multiples and factors. They take turns making rectangles with 12 squares on the grid.
Twist and Spout
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In this activity, learners make their own "tornado" using two soda bottles and water.
Make Your Own Sundial
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In this activity, learners investigate the Earth's rotation and how to tell the time of day without a clock. Thsi simple activity only requires a paper plate, a pencil, and sunshine.
Fizzy Foam Fun
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In this activity, learners create a colorful foam fountain by adding yeast to a chemical reaction. This activity introduces chemical reactions to young learners and teaches the concept of catalysts.
Watch and Create! Creativity For Sustainability
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In this activity, children and adults work together to explore their relationship with technology and examine ways to make sustainable media consumption choices.
Silly Putty Investigation
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In this activity (located on page 7 of PDF), learners explore how Silly Putty was first invented and then attempt to make a batch of their own.
Secret Message
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In this activity, learners explore acid and bases as they create their own invisible ink out of baking soda and grape juice.
Homemade Bath Fizzies
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In this activity, learners make their own bath bomb fizzies and experience what happens when they mix a base and an acid.
Dress Like a Frog
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In this activity, learners will discover what it takes to be a frog. By dressing up like one, learners can visualize how each part of the frog plays an important role in surviving its habitat.
Thirsty Candle
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In this activity, learners will explore the dynamics of air pressure by using a candle, a cup, and a dish of water.