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.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Learn all about balance and motion as your child designs a corn maze!

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Test whether plants can grow without sunlight and water.

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

Find out whether putting something on top of a plant will inhibit its growth.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project teaches students the differences between fruits and vegetables.