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

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.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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

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 experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

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

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.

In this activity your child will create their very own marble maze!

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

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

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

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

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

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

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

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

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

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