This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

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.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

In this experiment we will be determining whether birds prefer certain colors of seed.

Examine the effect of pressure on carbonation in soda.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Discover whether cold or hot water from the faucet will boil faster on the stove.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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

This science fair project investigates why the number of visible stars changes from place to place.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Learn all about balance and motion as your child designs a corn maze!

Test whether plants can grow without sunlight and water.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This science fair project idea produces sounds by creating vibrations using different objects.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.