This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Do you think heat can affect a plant's growth rate?

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

Science fair project that demonstrates how stalagmites and stalactites are formed.

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

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

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 experiment you will replicate the mummification process by making a hot dog mummy.

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

Science fair project that uses distillation to convert salt water into fresh water.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Science fair project that demonstrate how abrasions are formed on rocks in nature and the variations between types of rocks.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

This experiment will explore the best way to create a perfect soft-boiled egg.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This science fair project idea explores whether the color of surroundings affects human mood.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.