Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea determines if the color of light affects the growth of plants.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

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.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

In this fun activity, your child will create their very own solar oven to bake s'mores!

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

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.

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

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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

In this activity your child will create their very own marble maze!