This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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.

This science fair project idea explores the different properties of matter.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

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 science fair project idea explores the different properties & interactions of sugar molecules.

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

This science fair project idea identifies the properties of soap bubbles and invents a new or improved bubble solution.

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

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

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.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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 fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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.

This science fair project idea provides evidence that air is everywhere and takes up space.

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.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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.