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.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

In this science fair project, students use the streak test to tell minerals apart from each other.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project idea investigates the difference in reaction times between boys and girls.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

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.