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Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

People have favorite flavors, but what about ants? Which ant food is the most popular?

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.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Here's a science activity to help your child investigate how seeds are designed to travel.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

This science fair project teaches students about wilting and browning of salad greens.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

The objective of this science project is to determine the length of time for different seeds to germinate.

This science fair project idea explores how length affects the weight a bridge can hold.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.