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.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

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.

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

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

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.

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.

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

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

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

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

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!