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

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

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

Check out this cool science fair project on identifying rocks and minerals for kids.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

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

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.