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Comparing Sizes of Microorganisms
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In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete

There’s No Place Like Home!
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In this activity, learners make their own bug boxes and test the habitat preference of selected "minibeasts" (bugs).

Invent an Animal
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In this outdoor activity and game, learners explore how animals adapt for survival through coloration, markings and camouflage.

Join the Dinosaur Age
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In this activity, learners rotate through several learning and play stations to explore dinosaurs and paleontologists.

Positive Planning Adds Up
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In this drawing/mapping activity, learners design plots of land while incorporating positive strategies for improving water quality.

Mermaid's Purse
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In this activity (page 2 of pdf), learners craft a model of a skate egg case and come to understand that cartilaginous fish such as sharks and shakes employ reproductive strategies that differ from th

Underwater Hide and Seek
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In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.

Benham's Disk
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In this activity, learners make a Benham Top to explore visual illusions and optics.

Genetics the Easy Way
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In this activity, learners make critters out of recyclables and apply the rules of mathematics to solve genetics problems.

Balloon Bugs
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In this activity, learners make balloon models of disease-causing bacteria.

Our Beautiful World
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In this Bob the Builder(TM)-themed activity, learners go on a nature walk outside and describe what they observe using their senses.

Space Stations: Sponge Spool Spine
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In this activity, learners simulate what happens to a human spine in space by making Sponge Spool Spines (alternating sponge pieces and spools threaded on a pipe cleaner).

Size, Scale and Models
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In this activity, learners take measurements and create charts to learn about the size of dinosaurs and their relative scale to humans.

Make a Cast of a Tyrannosaurus rex Fossil
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In this activity, learners explore dinosaur fossils by making cast models of a T. rex. First, learners read about and research how dinosaur fossils form.

Digging Deeper!
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In this activity, learners explore dinosaur skeletons and anatomy. Learners make observations about a T. rex skeleton diagram and then measure the skeleton length and width.

Environmental Chemistry
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In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.

Slimy Cells
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In this activity, learners solidify their conceptualization of cells by building a model of a cell in a ziplock bag.

Cloud Fun
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Learners complete a series of hands-on and investigative activities to explore cumulus clouds.

Invent a Plant
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In this activity, learners construct models of plants that are adapted to living under specific environmental conditions.

Arctic Sea Ice
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In this activity, learners explore how the area of Arctic sea ice has changed over recent years. First, learners graph the area of Arctic sea ice over time from 1979 to 2007.