This science fair project idea examines eye color genetics and the role it plays in eye color inheritance.

This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

This winter garden project is just about bomb-proof, and believe it or not, it might even make a great gift. So get craft happy with your first grader!

Make an adorable nut buddy by crafting nature people out of nuts in shells! Buddies will take on their own personalities depending on the materials you use.

Make a periscope with milk cartons and mirrors! This preschool activity is great for playing secret agent and learning simple physics.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

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

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

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

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Determine whether the relationship between a personâs armspan and height are genetic.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

The objective of this science project is to determine the length of time for different seeds to germinate.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

Help your first grader design and create his very own bird feeder out of an empty milk carton.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Help your child make a beautiful homemade sandcastle that will last!

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.