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.

Science fair project which determines which colors of light allow plants to produce the most chlorophyll. How are color and light related to each other?

The objective of this experiment is to evaluate the effects of acid rain on plants.

Put some spring back in the season and teach your child a little about plants with this fun paper flower art project!

Use a dichotomous key to identify plants or animals.

Here's a way to make history both interesting and relevant: design a garden using plants that were used by people in colonial times!

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!

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.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

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!

Boys might wrinkle their noses at the thought of gardening, but we guarantee they'll like this activity! Make a recycled terrarium full of bug-eating plants.

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.

This study observes plants, insects and an animal living in proximity to a known source of EMF.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

Hand-painted pottery is the perfect way to add a bit of decoration to your potted plants.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

This science fair project idea teaches kids the different functions of a leaf.

If your mom loves gardening and plants, make her a Mother's Day garden decoration perfect for displaying in her yard!

Your child can re-use and re-purpose old seeds and paper into something new: decorated paper that can be planted!

This science fair project challenges students to research and interact with the animals and plants that live in tide pools and test a practical use of tidepools

Find out whether packaged seeds actually do expire in this new science fair project idea.

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

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Using plants and other items from the outdoors and clothing they already own, your kids can dress up as any one of the four seasons or simply as a Garden.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.