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This activity (located on page 3 of the PDF) is a full inquiry investigation into bird behaviors.

free Ages 8 - 14 2 to 4 hours
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In this quick activity, Dracula has a hole in his house and learners help solve the problem by using a mirror and protractor to reflect incoming light out of his house.

free Ages 8 - 18 Under 5 minutes
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We don't normally view people upside down and so our brains aren't accustomed to it.

free Ages 4 - 18 Under 5 minutes
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In this activity, the learner asks yes-no questions to identify a secret object (similar to Twenty Questions). This game is easy to adapt for different ages and different kinds of contexts.

free Ages 4 - 14 5 to 10 minutes
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In this activity, learners sample a star field to estimate the number of stars in the universe.

free Ages 8 - 14 45 to 60 minutes
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Jugando a este juego, los chicos desarrollan habilidades de lógica, geometría, y visualización espacial. Los jugadores empiezan con una red de hexágonos vacía.

free Ages 4 - 11 10 to 30 minutes
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In this Cyberchase activity, learners play a game where zero can help them win--or make them lose! Learners roll the die and place a zero in the tens or ones place.

free Ages 8 - 11 5 to 10 minutes
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In this interactive game, learners listen to the songs of four different thrushes and then try to match each bird with its song.

free Ages 6 - adult 5 to 10 minutes
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In this activity, young learners (2 years and up) explore the world of insects and other "bugs" by Making a "bug hotel" with recycled objects.

free Ages 4 - 8 1 to 4 weeks
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These math posters have questions written on them, such as: How many colors can you name in a minute? or How many seconds can you balance on one foot?

free Ages 4 - 14 30 to 45 minutes
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This is a series of three quick science activities to do with a spoon, knife, and fork. In the first two activities, learners use the flatware to explore optics, mirrors, reflection, and distortion.

free Ages 4 - 14 5 to 10 minutes
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In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.

free Ages 11 - adult 10 to 30 minutes
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In this online activity exploring our perception of "cuteness," learners adjust various factors (like pupil size or length of limbs) on a face, a cat, and a hammer.

free Ages 6 - 14 5 to 10 minutes
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In this game, students will become familiar with fish shapes, learn that fish within a given taxonomic family have similar body shapes, and discuss how different body shapes enable fish to survive in

free Ages 6 - 14 10 to 30 minutes
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In this activity, learners create a water prism to break light into the seven colors of the rainbow.

free Ages 6 - 11 Under 5 minutes
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In this activity, young learners (2 years and up) explore turtle basic adaptations and biology. Turtle external anatomy is explored by "building" a turtle with a nature collage.

free Ages 4 - 8 5 to 10 minutes
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With a bit of PVC, a laser, a can/cup, and a small mirror, you can make a device that visualizes you voice or any sound transmitted into the cup/can.

free Ages 8 - adult 10 to 30 minutes
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“Exploring Earth: Rising Sea” is a hands-on activity demonstrating ways to use topographical mapping techniques to track changes in sea level. The activity is connected to current NASA research.

free Ages 6 - 14 5 to 10 minutes
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In this activity, learners graph 48 hourly air temperatures from a local weather observation site and observe the diurnal temperature variations.

free Ages 8 - 14 30 to 45 minutes
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Learners work in teams to investigate how scientists use physical characteristics to classify living things.

free Ages 8 - 18 45 to 60 minutes