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

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.

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.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

This science fair project idea determines if the color of light affects the growth of plants.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

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

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

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Discover how and which salt melts ice the quickest.

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

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

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

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Have your child kick off their summer vacation by making a miniature water slide!

Discover whether cold or hot water from the faucet will boil faster on the stove.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

This science fair project teaches students about wilting and browning of salad greens.

Use a dichotomous key to identify plants or animals.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?