Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Test whether plants can grow without sunlight and water.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Kids conduct a simple science experiment to see if seeds can grow without soil in this simple kindergarten science activity.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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

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

Kids grow sunflower greens from seeds for a hands-on gardening experience in this kindergarten life science activity.

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

In this activity, your kid has your permission to get his socks nice and filthy. In fact, it's a necessity, because those socks are going to make a garden.

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

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

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

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

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

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

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.