How do organic materials become soil? This science experiment measures what materials biodegrade.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

Learn about nature by making your own mini moss garden.

Transform your uncomfortable wooden shoes into charming mini planters!

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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!

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

The project investigates how water and movement affects erosion.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

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.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

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

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

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

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

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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 kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.