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.

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.

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

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

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

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.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Make a planter full of delicious seasonings and classic grilling vegetables, great for a Fatherâs Day gift or a fun start-of-summer outdoor activity.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

This science fair project idea compares biodiversity between drops of water.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

In this project, the affects of vitamin E are observed on a rose petal.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project teaches students the differences between fruits and vegetables.

Transform your home into a theater with this fun Fall Family Theater Night activity! Invite the family to gather together to practice reading a fun fall-themed story in the format of a play.

Teach your fourth grader foreshortening, a type of visual perspective in art with this fun and easy activity!

Children reflect on ways they have cared for themselves, others, and the Earth before building a garden to share beauty with others in their community.