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

Conduct a simple experiment with your child to study how dirt tracks change as they age in this 1st grade science activity.

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

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

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

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This science fair project idea explores whether dogs do look like their owners.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

Explore convex and concave objects and how they reflect light.

This project examines whether people's taste perception is influenced by what they see.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

In this project children practice the scientific method while playing with puffy paint.

This experiment evaluates how much influence an enticing package has on childrensâ willingness to try a new snack.

This science fair project idea compares the mass and density of objects.

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

Learn about nature by making your own mini moss garden.

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

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

This science fair project idea explores how water and ice can change the form of rocks.