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This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Recycle paper and old magazines with this art project that creates a great tool for artists: a color wheel!

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

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.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

Build your child's vocabulary and get his body moving at the same time with this fun dance map activity!

The crust is fun for kids to mix and roll out, and the filling overflows with vitamin and anti-oxidant packed berries!

This costume wig is a simple craft that will result in a great item for Halloween, dress up, or pretend play. Make a yarn costume wig with your child.

Give your child a chance to experiment with how things grow. And throw in something extra to up the fun factor even more...her very own grass pet!

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

Get your child excited for the seemingly stuffier side of these chilly months with a mock debate.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Help your third grader make the Scoop 'N Catch--a great choice for a fun and inexpensive afternoon.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

This family photo calendar can be made by your second grader. Make a family photo calendar with your child to celebrate another year together.

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

Is your third grader bombing around on a bike these days? Here's a way to put all that fun time together with some math learning, too.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

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.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.