This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Start your toy engines -- this is going to be a fast and friction-filled race!

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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

The objective of this science project is to determine the length of time for different seeds to germinate.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science fair project idea identifies trees using a dichotomous key.

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

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

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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?

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

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

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.