Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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.

Learn about the right-hand rule for magnetic force! Use a cathode ray tube in this physics experiment to see a magnetic field's effect on an electron beam.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

This science fair project idea examines the reason boats are shaped and engineered.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

In this challenge, students are tasked with creating a car that can be powered by a balloon!

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

Did you know that August is American Artist Month? Your child can explore the art of photography by using a digital camera to capture the landscape around her.

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

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!

Play with balance and simple engineering as you hurry to create a sturdy rock tower.