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In this activity, learners explore the size and scale of dinosaurs. Learners listen to "The Littlest Dinosaurs" by Bernard Most. Then, learners estimate the size of a Triceratops and T.

1 cent - $1 per group Ages 4 - 6 45 to 60 minutes
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In this activity, learners play a game and use pattern blocks to explore mirror images and reflection.

1 cent - $1 per student Ages 4 - 8 45 to 60 minutes
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In this activity, learners use information gathered from a variety of sources to design and make their own insect.

1 cent - $1 per student Ages 4 - 14 45 to 60 minutes
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This fun and simple hands-on astronomy activity lets learners build a scale model of the universe with little more than adding machine tape.

1 cent - $1 per student Ages 6 - adult 45 to 60 minutes
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In this activity about computer programming, learners follow instructions in a variety of ways in order to successfully draw figures.

1 cent - $1 per group Ages 6 - 18 45 to 60 minutes
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Learners examine the manufacturing process while they make picture frames from cereal boxes.

1 cent - $1 per student Ages 11 - 14 45 to 60 minutes
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In this simulation of synapses, learners act out communication at the neural level by behaving as pre-synaptic vesicles, neurotransmitters, post-synaptic receptors, secondary messengers and re-uptake

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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In this activity about neuron/target muscle recognition (page 44 of the PDF), learners arranged in two rows facing away from each other use string to simulate neural development.

1 cent - $1 per group Ages 8 - 18 45 to 60 minutes
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In this activity about humans and space travel (page 1 of PDF), learners compare and contrast the behavior of a water-filled plastic bag, both outside and inside of a container of water.

1 cent - $1 per group Ages 6 - 11 45 to 60 minutes
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In this math lesson, learners play a game to identify the properties of prime, composite, abundant, deficient and perfect numbers.

1 cent - $1 per group Ages 11 - 14 45 to 60 minutes
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Using paper, paper clips, an index card, and tape, teams of learners design flying devices to (1) stay in the air as long as possible and (2) land as close as possible to a given target.

1 cent - $1 per group Ages 11 - 14 45 to 60 minutes
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In this graphing exercise (page 2 of the pdf), learners compare their own height to the length of various sharks.

1 cent - $1 per student Ages 8 - 11 45 to 60 minutes
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In this activity, learners build bridges using paper and explore how much weight each bridge design can support.

1 cent - $1 per group Ages 4 - 11 45 to 60 minutes
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In this simulation activity, learners will raise a pack of wolves under ten different conditions: without human interference and with human interference.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this math lesson, learners use simple addition facts to compute values (in dollars and cents) for their names.

1 cent - $1 per group Ages 6 - 8 45 to 60 minutes
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In this computer science activity about finite-state automaton (on page 45 of the PDF), learners use a map and choose various pathways to find Treasure Island.

1 cent - $1 per student Ages 8 - 14 45 to 60 minutes
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In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this hands-on and feet-on excursion, learners take a science walk to visualize the planet's immense size and numerous structures, without the usual scale and ratio dimensions found in most textbook

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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In this technology activity, learners explore digital imaging and pixels. Learners "transmit" an image to a partner by creating an image on grid paper.

1 cent - $1 per group Ages 8 - 14 45 to 60 minutes
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In this classic memory game (on pages 37-45 of PDF), learners turn over tiles to reveal images on the back.

1 cent - $1 per group Ages 4 - 11 45 to 60 minutes