Engineers in training can get started with this simple wheel-and-axle construction activity.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Use pepper and soap to discover some fun facts about the properties of water.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Science fair project that examines condensation and the conditions needed in order for dew to form.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

This science fair project will help students learn about non-vascular plants, such as mosses.

Plants and light seem to be good buddies, but how far does the friendship really go?

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

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.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

This science fair project idea investigates which objects float and sink in honey, water, and oil.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

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