This science experiment tests whether warm or cold water works best in making cut flowers last longer.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project idea compares biodiversity between drops of water.

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

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Help your fourth grade scientist practice measurement, and make a scrumptious, healthy summer cheesecake in the process!

Create a string of paper jack-o'-lanterns with this simple Halloween paper craft!

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.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

There's no better way to show mom you love her than with the tried and true breakfast in bed routine. Make whole wheat waffles along with a vase just for mom.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

In this design challenge, your child will make a bottle rocket using typical household items.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

This science experiment tests if dog saliva can really help heal wounds.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

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

The goal of this project is to create an exciting topographical map out of dough.