This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

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

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

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!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

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 project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Construct and experiment with a periscope using reflected light rays to gather an image.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

In this design challenge, your child will make a bottle rocket using typical household items.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

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?

In this activity, your child will be challenged to make a tower using paper cups.

In this science fair project you will make a model of a cell membrane using very simple material.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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