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

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.

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?

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

This science fair project idea demonstrates that plants give off water.

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

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

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

Test whether plants can grow without sunlight and water.

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

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

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

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

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

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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?

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.

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

This science fair project teaches students the differences between fruits and vegetables.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

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