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

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

This science fair project idea investigates which objects float and sink in honey, water, and oil.

In this experiment you will replicate the mummification process by making a hot dog mummy.

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 is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

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

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

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

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

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

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.

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

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.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

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

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

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

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

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.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.