Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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

This science fair project idea experiments with spinning color wheels and optical illusions.

This science fair project idea investigates if fats add to the flavor of food.

An home science experiment for older students that teaches about the science behind heat.

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

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

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

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science project teaches students to classify different shapes of leaves.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

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

This science fair project examines how seeds hitchhike on animals and clothing.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project teaches students about wilting and browning of salad greens.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!