Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

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.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project idea investigates whether air has mass and weight.

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Word color association is just a fancy way to talk about the way we connect colors with words.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

This science fair project examines how seeds hitchhike on animals and clothing.

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

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

In this project, a basketball containing different psi is dropped to see how well it bounces.

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

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

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

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.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

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.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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

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