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Learners work in groups to design and build a tower out of balsa wood. As a motivator, they can compete to build a tower with the highest strength-to-weight ratio.

$5 - $10 per group Ages 11 - 14 1 to 2 hours
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In this activity, learners create a battery from fruit. This activity helps learners explore electricity, electrochemistry, and series circuits as well as the process of scientific inquiry.

Over $20 per group Ages 8 - 14 1 to 2 hours
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In this activity (page 26 of the PDF), learners make observations, formulate hypotheses and design a controlled experiment, based on the reaction of carbon dioxide with calcium hydroxide.

$5 - $10 per group Ages 8 - 18 1 to 7 days
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In this activity (page 95 of the PDF), learners create Escher Staircase models similar to those that were used by Neurolab's Spatial Orientation Team to investigate the processing of information about

1 cent - $1 per student Ages 8 - 18 45 to 60 minutes
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In this activity, learners cut out and fold their own collapsible origami starshade, an invention that shields a telescope's camera lens from the light of a distant star so that NASA scientists can ex

free Ages 8 - 18 30 to 45 minutes
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In this math activity related to light, learners explore why a light, such as a candle or a streetlight, looks dimmer the farther away from it we get.

$5 - $10 per student Ages 11 - 18 10 to 30 minutes
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In this activity, learners create their own weather forecast map.

free Ages 8 - 14 30 to 45 minutes
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In this activity, learners use colored candy to represent subatomic particles and make a model of an atom (Bohr model).

$1 - $5 per student Ages 14 - 18 30 to 45 minutes
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In this physical sciences activity, learners explore how forensic investigators collect prints from a crime scene. Learners make hand impressions in damp sand and analyze the patterns they observe.

$5 - $10 per group Ages 8 - 14 45 to 60 minutes
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In this data analysis and environmental science activity, learners evaluate the feasibility of wave energy as a practical alternative energy source using ocean observing system (OOS) buoys.

free Ages 14 - adult 1 to 2 hours
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In this activity (pages 5-7), learners investigate the properties of smart materials, which are materials that respond to things that happen around them.

$5 - $10 per student Ages 8 - adult 10 to 30 minutes
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In this activity, learners will explore how their own eyes work by experimenting with their photoreceptors.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners use plastic water bottles, wood, and water to build an inexpensive and portable tool to demonstrate one atmosphere of pressure at sea level.

$1 - $5 per student Ages 11 - 18 45 to 60 minutes
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In this activity, learners identify different classes of matter based on physical properties.

$5 - $10 per group Ages 14 - adult 45 to 60 minutes
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In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes
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In this activity, learners will listen to as many radio stations as possible to discover that AM radio signals can travel many hundreds of miles at night.

free Ages 8 - 18 1 to 2 hours
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In this activity on page 3 of the PDF, learners investigate how much sugar is in a soda. Learners use sugar cubes to measure and calculate the amount of sugar in a bottle of soda.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners conduct an experiment to find the volume of one mole of gas. Learners capture sublimated gas from dry ice in a ziploc bag and use water displacement to measure its volume.

$1 - $5 per group Ages 11 - 18 45 to 60 minutes
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In this activity, learners make a model of a pollution spill that occurred at Bangs Lake in Mississippi and measure water quality parameters in their model.

Over $20 per group Ages 14 - 18 2 to 4 hours
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In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways.

$1 - $5 per group Ages 6 - 14 10 to 30 minutes