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Exploring Size: StretchAbility
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In this game, learners explore the different sizes of things in the world. In this Twister-like game, learners must place a hand or foot on a circle of the right scale - macro, micro, or nano.

Supersize That Dinosaur
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In this activity, learners explore the size and scale of dinosaurs. Learners listen to "The Littlest Dinosaurs" by Bernard Most. Then, learners estimate the size of a Triceratops and T.

Good Catch!
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In this activity, learners "go fishing," then practice ruler use and size/pattern comparison with the animals they catch.

Clipbirds
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In this simulation of natural selection, learners use binder clips in three different sizes to represent the diversity of beak sizes in a bird population.

Fish Features and Habitats
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In this activity, learners observe live fish in tanks to consider how their body structures are related to their behaviors and habitats.
Caterpillar Measure
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In this activity, young learners use different-sized paper 'caterpillars' and various household items to predict and measure their height.

Small Snails, Enormous Elephants
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This activity (located on page 2 of PDF) introduces learners to the real size of animals using nonstandard measurement.

Gummy Growth
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In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.

How Big Were the Dinosaurs?
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In this activity (located on page 4 of PDF), learners gain insight into the actual size of dinosaurs and practice making estimations and measurements.

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.

The Gator Pie Game
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In this activity, learners explore fractions as they help gators share pies.

Animal Attraction
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Investigate a flower's power of marketing by making an imitation flower that successfully signals a bee (or other pollinator of your choice) to visit.

Shark Sizes
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In this graphing exercise (page 2 of the pdf), learners compare their own height to the length of various sharks.

Ocean Home: Swimming Fishes
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In this activity, learners model, on a human-sized board game, how changes in water temperature may affect fish distributions and, ultimately, fisheries.

Elephant Foot
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Using a real-size sketch of a baby elephant's footprint, learners estimate, measure and record the width (diameter) and outside edge length (perimeter or circumference) of the footprint.

Horton Senses Something Small
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In this story time program, young learners listen to the Dr.

Feed the Birds
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Learners construct a bird feeder from re-used materials. After hanging their feeder, they keep a journal about what birds visit the feeder.

Animal House
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The goal of this activity is to design, build and test a house or toy for an animal.

The Adaptation Game
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To convey the concept of how animals adapt to survive, this game asks learners to imagine what adaptations a given animal would need to live in a certain environment—including environments where such

Leapin' Lizards
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In this outdoor activity, learners first explore lizard feeding behavior by creating a "lizard rig" to dangle different objects in front of live lizards and see which objects the lizards try to bite.