Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

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

Do you think heat can affect a plant's growth rate?

Test whether plants can grow without sunlight and water.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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 enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.