In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

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

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 science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

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

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 science fair project, young children notice and track changes in trees throughout the year.

Using a toy race car kids create a visual model of the Doppler Effect.

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.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

Learn how different types of soil affect how animal tracks form in this experiment!

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

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, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

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

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

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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.

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

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

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 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.

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