What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

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.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

I scream, you scream, we all scream for homemade spearmint ice cream!

In this science fair project, students use the streak test to tell minerals apart from each other.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Help your child learn about animal classification with this fun and delicious activity.

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.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

This science fair project teaches students the differences between fruits and vegetables.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.