This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Do heavier objects fall faster than lighter ones? Students learn the answer by watching the effect gravity in a vacuum has on a coin and a feather.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

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.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Identify vitamin C in fruit juices and to determine which of the following juices contain the most vitamin C

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

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Children use their design thinking skills and powers of observation to create and construct a bird nest.

Take a trip to the pet store and then make a scrapbook to help your kindergartener learn the difference between living and non living things!

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

Here's a fun activity that will have your child teaching you for once, while you find out exactly what she is learning in school.

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.