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

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

This science fair project idea produces varying pitches of sound.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

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.

This science fair project idea examines which type of insulation holds in the most heat.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea explores whether talking to a plant will help it grow.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This science fair project idea explores the different properties & interactions of sugar molecules.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

This science fair project will help students learn about non-vascular plants, such as mosses.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This science fair project idea investigates if fats add to the flavor of food.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

This science fair project idea explores the different properties of matter.

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

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Help your kindergarten science maven explore the water cycle without getting everything wet.

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

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.