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

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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

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

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

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This science fair project idea determines the most effective method of preserving food.

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.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Find out which kind of bubble wrap fares best when put in impact.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

This project examines whether people's taste perception is influenced by what they see.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

In this design challenge, your child will create a parachute for a small toy using typical household items.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

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.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Will the shape of an ice cube impact how fast the ice melts?

Find out whether a longer airplane will fly farther or a wider paper airplane.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.