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Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Determine which video game elevates the heart rate best and burns the most calories.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

This science fair project determines the quality of a given product.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science fair project examines whether ocean water can be made safe to drink.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Test your skills as a weather forecaster, and learn some science terms on the way!

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.