What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

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.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Determine if gender affects the ability to identify different smells.

In this project, several food items are tested to determine whether they contain starch.

Teach your child the meaning of recycle and reuse by repurposing plastic spoons as plant markers for your vegetable garden.

The project determines determine if a sports drink affects the heart rate of a student athlete during exercise.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

This science fair project idea identifies trees using a dichotomous key.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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