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This activity is on page 3 (continued on page 2) of the pdf, part of the Simple Machines Discovery Box. In this fun activity, learners "create" a complex machine by simulating the parts in action.

In this fun activity about spiders, learners build and design a spider from cardstock, straw, string, and pipe cleaners.

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

This is an activity about robotics programming. Learners will discover how precise programmers have to be as they instruct a friend to make a peanut butter and jelly sandwich.

In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.

In this quick activity, learners explore how blubber protects animals from the cold by making a "blubber mitt." Using cooking shortening, two zip-top sandwich bags, and duct tape, learners simulate bl

In this three part activity, learners explore and experiment with shadows to learn about the Sun's relative motion in the sky.

In this activity, learners model the flow of energy from the sun as it enters a photovoltaic cell, moves along a wire and powers a load.

In this hands-on activity, learners simulate the crashing and smashing of a meteor impact using household cooking supplies.

This online interactive has three activities in the NanoLab (press the upper right button): Build, Zoom, and Transform.

In this activity about sea otters, learners make their own "otter whiskers" and use them to find objects underwater.

In this activity, learners use sieves with different-sized holes to sort balls by size.

In this group activity, learners will explore the characteristics, functions and uniqueness of the mangrove tree.

In this activity, learners will simulate the processes of the water cycle at home in a plastic sandwich bag.

This is an online simulation of how sound changes due to environment. How does place--like a cave, a pier, or a forest--affect certain sounds?

This game plays a dozen different sounds, altered to simulate what they would sound like if you had hearing loss.