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Who Can Harvest a Walleye?
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This activity focuses on interactions within Earth systems and the effects of human activities. In this activity learners build a biomass pyramid.
Any Year Calendars
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This PDF contains 12 calendars (12 months). Each month contains activities about math. Things to do on familiar holidays (like July 4), less common holidays (like Backward Day), and any day.
When is a Glass of Water Really Full?
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In this activity, learners see how many coins they can add to a full glass of water before the water overflows.
Scale Model of Sun and Earth
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In this activity, learners explore the relative size of the Sun and Earth as well as the distance between them.
Hot Stuff!: Investigation #2
Learners test two jars containing hot water, one covered with plastic and one open, for changes in temperature.
Finding the Size of the Sun and Moon
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In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.
Treasures in the Rough
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In this archaeology activity, learners make observations and conduct an experiment to demonstrate the effect saltwater has on artifacts.
Regolith Formation
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In this three-part activity, learners use food to determine the effects of wind, sandblasting and water on regolith (dust) formation and deposition on Earth.
Sink or Swim?
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In this activity, learners identify different plastics in a mystery bag. Learners discover that plastics are classified #1 through #7.
Inverted Bottles
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In this activity, learners investigate convection by using food coloring and water of different temperatures.
Canned Heat
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In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.
Telescopes as Time Machines
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This fun, nighttime hands-on astronomy activity lets learners explore how long it takes for light from different objects in the universe to reach Earth.
Evolution in Action: Isolation and Speciation in the Lower Congo River
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In this guided discussion activity, learners watch a video about Central Africa's Lower Congo River, one of the most biologically diverse rivers in the world.
Mapping a Study Site
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In this outdoor activity, learners use a mapping technique to become oriented to the major features of an outdoor site.
Make Your Own Deep-Sea Vent
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In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.
Let's Go Ice Fishing
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In this activity, learners are challenged to lift a floating ice cube out of a glass of water using just one end of a piece of string.
Map That Habitat
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Historically, sea floor mapping (bathymetry) was done by soundings.
Simple Submarine
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Using simple, inexpensive items, learners build and test submarine models.
Building a Magic Carpet
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In this activity (page 89 of the PDF), learners compare and contrast pitch and roll motions by using a Magic Carpet maze similar to one that was used for Neurolab investigations about microgravity.
Can Nutrients in Water Cause Harm?
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In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.