This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project idea explores whether color affects a person's emotional state.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This science fair project examines how seeds hitchhike on animals and clothing.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

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

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

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

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

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.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.