Find out whether matte or shiny nail polish lasts longer.

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.

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

This classic children's game demonstrates how sound travels through air vs. through a solid.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

This science fair project idea determines the probability of a coin landing heads or tails.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This science fair project idea examines which type of insulation holds in the most heat.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Explore if planting seeds in a certain direction will affect how fast it germinates.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Plants and light seem to be good buddies, but how far does the friendship really go?

Find out whether packaged seeds actually do expire in this new science fair project idea.

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

The goal of this project is to create an exciting topographical map out of dough.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.