Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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.

This project determines what category of person is most likely to be ticklish.

Test whether plants can grow without sunlight and water.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project idea explores whether dogs do look like their owners.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

Do different types of oil mix or stack? Find out in this science fair project idea!

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this project children practice the scientific method while playing with puffy paint.

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

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

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 science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Can you wink? Is your ability to wink genetic or simply based on chance? Find out in this science fair project idea!

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.