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Saguaro Nest Cavities
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This activity (on page 3 of the PDF under GPS: Cactus Activity) is a full inquiry investigation into how some desert birds keep their cool.

Build Your Own Marble Machine
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In this activity, learners will build a ball run contraption.

Pictures From Light
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Did you know that using a lens one can bend light to make pictures of the world? It's true!

Flip
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In this amazingly simple physics activity (page 5 of the PDF), learners will explore how exerting a force on an object can give it kinetic energy and momentum.

Milli's Insulation Investigation
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In this activity on page 2 of the PDF, learners test different materials to find out which is the best insulator.

Sail Car Design
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This activity (on page 3 of the PDF under GPS: Sailboat Design Activity) is a full inquiry investigation into design optimization.

Paint a Fresco
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In this activity on page 7 of the PDF, learners experiment with the interesting designs that can be made by painting on plaster.

3 Classes of Levers
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In this physics activity (page 3 of the PDF), learners will move a load using a lever of each of the 3 classes. They will explore the differences between these classes and which are more effective.

Double Replacement Micro-Reactions
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In this chemistry activity, learners use common chemicals to examine reactions that occur between two aqueous solutions.

Algebra: Aw Chute!
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In this math lesson, learners determine and compare the rate of descent of various learner-constructed parachutes. Learners construct parachutes that will have maximum hang times.

Exploring Magnetic Field Lines
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In this activity, learners explore the magnetic field of a bar magnet as an introduction to understanding Earth's magnetic field. First, learners explore and play with magnets and compasses.

From the Ground Up
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In this plant science activity, learners conduct four experiments to observe how plants respond to sunlight and gravity.

The Ladder of Life
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In this activity, learners identify the DNA base bars guanine, cytosine, thymine and adenine. Learners create a DNA model using colored paper clips to resemble these base pairs.

Shimmering Lenses
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In this activity, learners use Jell-O to explore lenses. Learners cut Jell-O into convex and concave lens shapes and examine how light exits each lens in a darkened room.

Making Naked Eggs: Eggs Without Shells
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This is an activity about acid-base reactions using eggs and vinegar. Learners place eggs inside a container of vinegar and leave to soak overnight.

Finger Basketball
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In this activity, learners build mini-basketball courts using cardboard and measuring spoons. Use this activity to introduce learners to catapults, forces, and levers.

Breaking the Tension: Surface Tension 1
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Learners explore how the attractive forces between water molecules create surface tension and allow certain objects to float on the surface of water.

Rolling Returns
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In this activity, learners build a special rolling can that returns back to you when you push it forward. Use this activity to demonstrate the transfer of energy between kinetic and potential energy.

Good Stress
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In this activity about physical stress (page 28 of PDF), learners discover that muscles and bones need to work to stay strong.

Community Wind Project
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In this thought-provoking activity, learners plan a hypothetical project to build and operate wind turbines in their community.