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Wonderful Weather
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In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind.

Energetic Water
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In this activity, learners explore how hot and cold water move. Learners observe that temperature and density affect how liquids rise and fall.

Parachute Parade
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In this engineering activity, learners design parachutes to give toy figures safe landings. This activity is great for practicing an important STEM skill--changing only one variable at a time.

Metallophone
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In this activity, learners explore sound by constructing an instrument using some metal pipes, rubber bands, and a baseboard.

Two Button Buzzer Circuit
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In this activity, learners explore an everyday situation, where either of two or more buttons can ring a buzzer.

Cloudy Globs: Can You Make a White Gel From Two Clear Liquids?
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Using household materials, learners can make white gooey globs from clear solutions. Alum, dissolved in water, reacts with the hydroxide in ammonia to create aluminum hydroxide.

Telescoping Periscope
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In this activity, learners explore the many uses of periscopes and how this simple device was designed and is used in many applications.

Think Fast!: Just How Quick Are You?
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This is an activity about reaction times. Just how quickly must an NHL goalie respond to save a shot, and how does your reaction time compare?

Puff Mobile
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In this engineering activity, challenge learners to design a car using only 3 straws, 4 Lifesavers™, 1 piece of paper, 2 paper clips, tape, and scissors.

How Many Pennies?
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In this math activity, learners pretend there is a special store that lets you pay for toys by their weight in pennies.

Watercraft
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

Crystal Packin' Mama
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In this activity, learners investigate the basic crystal structures that metal atoms form.

Go with the Flow
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In this quick and easy activity and/or demonstration, learners use two empty soda cans to illustrate Bernoulli's principle.

What is Energy?
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In this exploratory activity, learners experiment, observe and determine how various toys change from one form of energy to another.

Modeling Tidal Action
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In this activity (Lesson 1), learners work in groups to create tide simulations.

Three Colors of Light
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Have fun with additive mixing! Observe what happens when the three primary colors of light--red, green and blue--are mixed together, resulting in white light.

Magnetic Lines of Force
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With a magnet, iron fillings, and a bottle, you can create a cool demonstration about magnetic lines of force: the fillings will arrange themselves within the magnet's magnetic field.

High Rise
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In this design challenge activity, learners build a tower that can support a tennis ball at least 18 inches off the ground while withstanding the wind from a fan.

Composites
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In this activity, learners explore how composites work by creating and testing their own composite for an imaginary company.
Fish Eyes: More than Meets the Eye
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In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.