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

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

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This science experiment has students test whether a snail moves faster on concrete or dirt.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

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

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

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 attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

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.

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

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

In this fun activity, kids practice measurement and boost fine motor skills as they learn all about how fossils form and even make a few of their own!

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

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.

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

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Help young learners discover why catÃs eyes glow in the dark with this simple experiment

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

This science fair project idea investigates the hardness property of minerals.