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In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Start your toy engines -- this is going to be a fast and friction-filled race!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This biodiversity project examines the biodiversity in your own backyard.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Take a dive into the candy jar with this yummy science experiment.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

This science fair project investigates why the number of visible stars changes from place to place.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.