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 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.

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.

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!

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

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).

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

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

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

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.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Use the textures found in nature to create your own stationery! This fun, outdoor activity will no doubt inspire your child's creative side.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!