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

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

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?

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

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!

This science fair project teaches students the differences between fruits and vegetables.

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

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

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.

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

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.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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!

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

In this activity your child will create their very own marble maze!

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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

Here's a pressed leaf card project that puts science and writing together for your second grader.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.