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In this activity, learners will use chemistry to create a night sky watercolor painting. They will experiment to learn the effects of mixing crayon, salt, and lemon juice with water color paints.

$5 - $10 per student Ages 4 - adult 30 to 45 minutes
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Learners write or draw with white crayon on white paper. They look and feel to detect their marks on the paper. Then, learners paint over their paper with watercolor paint.

$1 - $5 per group Ages 4 - 14 Under 5 minutes
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Combine logic and numbers in this game for all ages. Players start with a 10x10 grid of the numbers 1 to 100. One person chooses a secret number and announces the range in which it falls.

free Ages 4 - 14 5 to 10 minutes
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In this activity, young learners will make their own flower seed nursery in an egg carton.

$1 - $5 per group Ages 4 - adult 1 to 4 weeks
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In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

$5 - $10 per group Ages 4 - adult 5 to 10 minutes
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In this activity, leaners explore building techniques by recreating the story of The Three Little Pigs.

$1 - $5 per group Ages 4 - 14 45 to 60 minutes
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In this activity, learners design and build their own parachute using household materials with the goal of landing their passenger safely on a target.

$5 - $10 per group Ages 4 - adult 10 to 30 minutes
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In this outdoor, nighttime activity, learners gather around a brightly lit, white surface and study the behavior of nocturnal animals attracted to the light, particularly night fliers.

$1 - $5 per group Ages 4 - 14 45 to 60 minutes
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In this activity, learners will use their five senses to explore a nature-based area around them.

1 cent - $1 per student Ages 4 - adult 30 to 45 minutes
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Learners will construct a model of a heart valve using a film canister, a piece of masking tape, and a piece of paper.

1 cent - $1 per group Ages 4 - adult 10 to 30 minutes
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This is written as a display, but can easily be adapted to a hands-on activity. Learners observe and shake containers of shiny liquids.

$5 - $10 per group Ages 4 - 14 5 to 10 minutes
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In this activity, learners explore different ways to stack cups to meet a personal goal.

$1 - $5 per group Ages 4 - 14 10 to 30 minutes
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In this sunny day, outdoor activity, learners observe changes in shadows over time. The activity also helps to develop a sense of the Earth's motion.

$1 - $5 per group Ages 4 - 18 45 to 60 minutes
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In this activity, learners will create a home for animal friends in their backyard using recycled materials. Some material suggestions include: pine straw and twigs.

1 cent - $1 per student Ages 4 - adult 10 to 30 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 activity, learners gain a better understanding of how household/school waste breaks down in a landfill. Learners collect trash and then create miniature landfills in 2-liter bottles.

1 cent - $1 per student Ages 4 - 14 1 to 4 weeks
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In this activity, learners explore the concepts of natural selection and observable traits in a game that can be played at home.

$5 - $10 per group Ages 4 - 14 10 to 30 minutes
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Learners explore their surroundings while reasoning about categories and counting.

free Ages 4 - 14 5 to 10 minutes
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In this chemistry activity, learners prepare two petri dishes, one filled with water and one filled with milk.

$1 - $5 per group Ages 4 - 18 5 to 10 minutes
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This activity puts a mathematical twist on the familiar “guessing jar.” No guesses allowed, estimates only.

1 cent - $1 per group Ages 4 - 14 5 to 10 minutes