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In this online activity about anatomy, learners will correctly order the path blood takes through the heart in order to absorb oxygen to deliver to the rest of the body.

free Ages 11 - 18 Under 5 minutes
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In this online activity, learners test their ability to hear different frequencies and compare their frequency range with the frequency range of other animals and insects.

free Ages 4 - 11 5 to 10 minutes
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Can you avoid the body's immune system and make someone sick? Play this online game in which you go inside a human body to explore how viruses attack cells in the body.

free Ages 8 - 14 5 to 10 minutes
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In this quick activity about size and scale (on page 2 of the PDF under What's Nano?

free Ages 8 - 14 10 to 30 minutes
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In this activity, learners discover how exercise helps keep the body healthy. Learners increase their heart rates by running and understand how running fast versus walking affects their pulse rates.

free Ages 6 - 14 10 to 30 minutes
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In this online activity, learners will brush up on their multiplication, division, and factoring skills with this exciting game.

free Ages 8 - adult 10 to 30 minutes
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Put math of measurement into lining up — and make waiting in line fun. Choose a size characteristic that learners can physically compare, such as foot length or hair length.

free Ages 4 - 14 5 to 10 minutes
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In this physical activity, two lines of learners link hands and arms to model a beam subject to various loading schemes.

free Ages 11 - 14 10 to 30 minutes
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¡Este juego de estrategia tiene reglas sencillas pero puede ser un reto! Los jugadores empiezan con una red de hexágonos vacía. En su turno cada jugador pone su inicial en un hexágono vacío.

free Ages 8 - 14 10 to 30 minutes
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In this activity, learners will plan a snack within a budget. With a $20 limit (theoretical) to spend on snack for everyone, learners look over grocery store circulars and make their shopping lists.

free Ages 6 - 14 45 to 60 minutes
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In this activity, learners will be able to measure themselves in nanometers. A nanometer is a billionth of a meter, a unit of measurement used in nanotechnology.

free Ages 6 - 18 5 to 10 minutes
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In this online simulation, learners can see adaptation and camouflage in action.

free Ages 8 - 11 10 to 30 minutes
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In this activity (on page 2 of the PDF under GPS: Cactus Activity), learners will develop their own version of a tool used by biologists, a dichotomous key, by collecting all their left shoes.

free Ages 8 - 14 10 to 30 minutes
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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.

free Ages 4 - adult 10 to 30 minutes
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In this activity, learners explore inertia as they attempt to whip a strip of paper out from under two coins dangling on the rim of a water glass.

free Ages 6 - 14 5 to 10 minutes
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In this on site "field trip" activity (located on pages 6-9 of PDF), learners get hands-on experience identifying building materials by playing "Building Bingo".

free Ages 8 - 14 1 to 2 hours
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This is a web activity about simple machines. Learners will explore a lawn mower and identify six different simple machines which work together to help make our lives easier.

free Ages 8 - 11 Under 5 minutes
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This is an online game that explores speed, range and momentum. Learners will pick the winners in a 16-team tournament in 3 events: Tug-o-war, sprint, and marathon.

free Ages 8 - 18 10 to 30 minutes
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Make a copy of the first stethoscope with only a cardboard tube! René Laennec invented the first stethoscope in 1819 using an actual paper tube!

free Ages 4 - 14 5 to 10 minutes
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In this activity, learners discover how hard their hearts work to pump blood.

free Ages 4 - 14 Under 5 minutes