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Find out whether putting something on top of a plant will inhibit its growth.

Find out which type of sponge holds the most water.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

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

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 that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

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

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

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 science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

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

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

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

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

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.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

This science research project challenges students to think of more effective lobster farming methods.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.