In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Use pepper and soap to discover some fun facts about the properties of water.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

This project compares the strength of one, two, and three-ply toilet paper.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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 popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

This science fair project idea investigates the hardness property of minerals.

Do different types of oil mix or stack? Find out in this science fair project idea!

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

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.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.