This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Demonstrate how to tell the age of an egg without having to crack it open.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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 purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Find out which type of sponge holds the most water.

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

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

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

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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

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