Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

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

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

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

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

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

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

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.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project idea investigates how the shape of an object affects drag.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.