This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science experiment tests if dog saliva can really help heal wounds.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

This science fair project idea compares biodiversity between drops of water.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this project, you will observe and record changes in sunspots over two weeks.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.