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

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

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 science fair projects, students will grow out the bacteria that collect on air conditioner filters.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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

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

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

Discover whether a metal will expand under hot water.

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.

Using a toy race car kids create a visual model of the Doppler Effect.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Want to spark your third grader's interest in gardening? Help him make popsicle stick fairies to decorate an enchanting garden oasis.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This science fair project idea investigates whether plants can survive being frozen.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

If your mom likes flowers, make her a sweet gift that she'll treasure with this fun craft, a pretty Pressed Flowers Card!