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This game asks you a series of questions about how much time you spend in front of a screen, not being active.

free Ages 8 - 14 5 to 10 minutes
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In this invention challenge activity, learners create an indoor game for one or two people that gets you moving.

$10 - $20 per group Ages 8 - 14 30 to 45 minutes
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In this invention challenge activity, learners see how many objects they can grab with a homemade "bionic" arm.

$1 - $5 per student Ages 8 - 14 30 to 45 minutes
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Este Web site contiene links a 12 calendarios (12 meses). Cada mes contiene actividades sobre matemáticas.

1 cent - $1 per group Ages 4 - 14 1 to 2 hours
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In this activity (on page 8), learners model how marble statues and buildings are affected by acid rain.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners will test soil content using their sample, some water and a container that seals.

1 cent - $1 per student Ages 4 - adult Under 5 minutes
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En esta actividad, los aprendices leen sobre como Mateo y Cientina conducen una investigación forense para descubrir quien llevó unos dulces.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

free Ages 6 - 11 5 to 10 minutes
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Learners use Duplo bricks to build antibodies with shapes that match model viruses.

$10 - $20 per group Ages 11 - adult 5 to 10 minutes
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In this activity, learners play a trick on their own brain to see if the brain can learn to ignore distracting input. Colors and words are used to play the visual trick, known as a Stroop Test.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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In this activity, learners conduct the "Stroop Effect" test and explore what happens when they try to complete two simple tasks at the same time.

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

free Ages 4 - adult 10 to 30 minutes
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During this hands-on activity, learners are briefly exposed to moviemaking and animation, when they create their own thaumatropes.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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In this activity, learners examine their fingerprints and learn that they can be categorized by shape, but each fingerprint is unique.

1 cent - $1 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners create slime to model mucus and examine how it collects simulated particles. Mucus keeps particles from the environment out of our lungs when we breathe.

$5 - $10 per student Ages 4 - 11 10 to 30 minutes
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Exponga estos pósteres en el salón o déjelos donde los chicos los puedan explorar. Los chicos buscan las respuestas en libros de consulta o en línea.

free Ages 6 - adult Under 5 minutes
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In this design challenge activity, learners build a four-stringed instrument that can play a tune.

$1 - $5 per student Ages 8 - 14 45 to 60 minutes
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En esta actividad, los aprendices harán un terrario usando materiales simples.

1 cent - $1 per group Ages 4 - 8 10 to 30 minutes
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In this activity, learners calculate their water usage (in cups and galloons) during an average shower. Learners also chart and analyze water usage during showers in their households.

free Ages 6 - 11 45 to 60 minutes
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En esta tira cómica, Mateo y Cientina emplean su conocimiento de la química y las medidas para esta actividad deliciosa - ¡hacer helado!

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes