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 cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Here's a science activity to help your child investigate how seeds are designed to travel.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This project examines what types of objects burn and which burn faster and cleaner.

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

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Do different types of oil mix or stack? Find out in this science fair project idea!

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Challenge your learner to design and build a city of their own in this creative engineering activity.

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

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

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