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Straws and pipe cleaners are terrific materials for building models of pyramids and cubes.

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

Make a kite out of a garbage bag, shower curtain, painting tarp--anything light, thin, flexible and plastic!

Use geometry, a ruler, and a steady hand to create these amazing unfurling paper folds!

This is a demonstration you can use to show learners how valves and pumps work in concert to move blood through the circulatory system.

In this activity, learners take their own pulse and explore how heart rate is affected by various activities.

Create airplanes from straws and geometric shapes. Test them out to see how far they can fly, or how accurately they can be aimed.

A design challenge that takes paper airplanes into an entirely different direction: a magnus glider uses cups and and rubber bands to create a glider that uses the same forces that a curveball (from b

Is a square stronger than a triangle? Use tongue depressors to build simple shapes. Then apply a little weight to them and see what happens!

In this activity, learners investigate balance and symmetry by designing a symmetrical butterfly, using a paper cutout.

Learners will build a homemade pump using a balloon, a mason jar, and some straws.

Create your own spinning top, and explore color, shapes and spinning. This activity contains instructions for making your spinning top, and tips on how to design and decorate it.

Use grape juice, baking soda, water and vinegar to make acid and base indicator paper! This activity contains a recipe and instructions for the indicator paper.

This activity is a fun way to show two stages in a Monarch butterfly's life cycle. Learners will create an optical illusion that can be flipped from caterpillar to butterfly.

How many colors make black? Gather as many water soluble black markers as you can find.

Create a painting by blowing air out of a straw. Push liquid acrylic paint around on some watercolor paper by aiming short bursts of air onto the paint puddle.

Make a quick and easy filter from household materials. A filter will catch any solids suspended in a liquid and filter them out. By using a filter, learners can discover amazing things.

Build a fruit fly trap out of a 2-liter plastic bottle and some rotten fruit! Fruit flies are easy to catch in warm weather. Once you catch some, you will be able to see their life cycle up-close.

Learners will construct a model of a heart valve using a film canister, a piece of masking tape, and a piece of paper.

By building a model of a lung and diaphragm, learners discover the function of various parts of the body's respiratory system.