This science fair project idea investigates whether rocks containing geodes can be determined from the outside.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

If you hold a fire up to a balloon, it pops instantly. What if you could prevent this from happening? In this project, we do just that.

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

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

This science fair project idea demonstrates sonar mapping of the ocean floor.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

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.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

This experiment investigates whether the primacy effect is observed more frequently in specific populations of people.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

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.

This science fair project examines the different composition of fungi and plants.

The goal of this project is to create an exciting topographical map out of dough.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

The objective of this experiment is to conduct a ganzfeld experiment and determine if extrasensory perception (ESP) can be observed.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Which bread molds fastest? Explore the different kinds of breads and how quickly they mold, along with the role of preservatives.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.