Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea determines the most effective method of preserving food.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project idea explores whether white light can be separated into different colors.

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

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

This science fair project idea explores substances that cause a bubble to last longer.