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Challenge popular misconceptions, learners explore how a mirror actually reflects an image in this activity.

1 cent - $1 per group Ages 8 - 18 5 to 10 minutes
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In this activity, learners explore motion and airflow by setting two aluminum cans on their side and blowing air in-between them.

1 cent - $1 per student Ages 8 - 18 Under 5 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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Learners combine different plant solutions -- made from fruits, vegetables, and flowers -- with equal amounts of vinegar (acid), water (neutral), and ammonia (base).

1 cent - $1 per group Ages 11 - adult Under 5 minutes
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In this activity, learners investigate sound and vibration by making a "bee hummer"--a toy that sounds like a swarm of buzzing bees when you spin it around.

1 cent - $1 per student Ages 8 - 14 10 to 30 minutes
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In this science/art activity, learners create an insignia or emblem for a planet exploration mission.

1 cent - $1 per group Ages 6 - 18 45 to 60 minutes
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In this activity, learners plant seeds and watch them sprout and grow inside a CD case.

1 cent - $1 per student Ages 4 - 11 1 to 7 days
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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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In this activity, learners use sound to figure out, or infer, the position of objects. Learners create a maze inside a shoebox with blocks of wood.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this activity, learners "draw" with frozen tempera paint. The ice cubes are prepared the day before by placing watered down tempera paint and popsicle sticks in ice cube trays.

1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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In this math game (Page 15 of the Dining Out! PDF), learners figure discounts and/or profit increases for various food totals. Learners add decimals to $100.

1 cent - $1 per group Ages 8 - 14 30 to 45 minutes
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In this activity, learners determine whether thermal energy can be used for work.

1 cent - $1 per group Ages 11 - 18 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, learners observe the water cycle in action! Water vapor in a tumbler condenses on chilled aluminum foil — producing the liquid form of water familiar to us as rain and dew.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

1 cent - $1 per group Ages 6 - 14 30 to 45 minutes
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In this experiment, learners examine how pressure affects water flow. In small groups, learners work with water and a soda bottle, and then relate their findings to pressure in the deep ocean.

1 cent - $1 per group Ages 11 - 18 45 to 60 minutes
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In this activity (on pages 26-33), learners play parasitologists, solving several "mysteries" about people who got sick from various parasites. In teams of four, each member solves one mystery.

1 cent - $1 per student Ages 8 - 14 45 to 60 minutes
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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 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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In this activity, learners use raisins and seltzer water to understand why waves don’t move objects forward. Learners conduct two simple experiments to understand the circular movement of waves.

1 cent - $1 per student Ages 8 - 11 10 to 30 minutes