Jessie Rack: Science will Save the World - Flower Anatomy
Jessie Rack (University of Arizona)

What’s inside of a flower?

Arizona Game and Fish Department: Focus Wild Arizona Activity Sheets - Saguaro Hotel
Arizona Game and Fish Department

Often, our view of the desert is one with little to no life — perhaps a single cactus surrounded by nothing but sand and rocks. But, in Arizona, this is rarely the case!

Brains On! Trees: From Seed to Shining Seed
Brains On!

Kids love trees. How do we know? They send us a LOT of questions about our bark-wrapped friends.

The University of Arizona Laboratory of Tree-Ring Research: Tree-Ring Basics
The University of Arizona

Learn basic information about the study of tree rings.

The University of Arizona Laboratory of Tree-Ring Research: Try Crossdating Online
The University of Arizona

The “Try Crossdating Yourself!” online tutorial, teaches you the basic technique of crossdating using the “skeleton plot” method.

The University of Arizona Laboratory of Tree-Ring Research: Print Tree-Ring Exercises
The University of Arizona

Obtain instructional exercises that help novices and experts hone their cross dating skills. Try a range of difficulties and applications.

But Why?: Why Do Leaves Change Color In The Fall?
But Why?

Leaves turn from green to yellow and orange in the fall. The color has been their all along, but was masked by cholorphyll.

But Why?: But Why Live - Trees
But Why?

On Friday, June 12th we answered your question about trees and tree communication with scientists Alexia Constantinou and Katie McMahen of the Simard Lab at the University of British Columbia.

California Academy of Sciences: Sensational Seaweed
California Academy of Sciences

In this activity, students will learn the parts of algae, compare them to land plants, and rotate through exploration stations to investigate seaweed close up with their different senses.

California Academy of Sciences: Stomata Printing - Microscope Investigation
California Academy of Sciences

In this lesson, students will investigate leaves up close to look for the structures responsible for gas exchange.

California Academy of Sciences: What Color is Your Leaf?
California Academy of Sciences

Students head outside to look closely for patterns of leaves in a shady environment vs. a sunny environment. In what ways are the colors the same or different?

California Academy of Sciences: Travel Deep Inside a Leaf
California Academy of Sciences

What would you see if you could shrink down to fit inside a plant cell?