Is it a square or a circle? See if you can trick your friends with this zany science project!

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This is a fun and inexpensive project and it's a great way for your child to build basic geometry skills, like shape recognition and pattern/angle familiarity.

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.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

This science fair project idea examines the reason boats are shaped and engineered.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This activity is a fun challenge for students who have just started learning to program educational robots.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Discover whether a metal will expand under hot water.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

You and your child can create this beautiful butterfly mobile for hanging anywhere in the home (and learn about this magical creature while you're at it).

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Travel back to the Jurassic age with this creative dinosaur activity that would make a great addition to any wall or fridge.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Make edible amber fossils with your second grader to explore the fascinating world of science!

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.