Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

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

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

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.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

This science project allows students to study the psychology of happiness.

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

In celebration of Earth Day, help your fifth grader write a poem from the Earth to its inhabitants.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.