NASA
Nasa Earth Observatory: Global Maps: Cloud Fraction
View a global map showing cloud fraction from January 2005 to November 2008. Learn how clouds have a warming and cooling influence depending on altitude.
NASA
Nasa Earth Observatory: Global Maps: Chlorophyll
Discover how chlorophyll is related to photosynthesis and watch a map evolve from July 2002 to October 2008 showing the varying levels of chlorophyll. Read about how important chlorophyll and photosynthesis are to our environment.
Florida State University
Florida State University: Molecular Expressions: Primary Colors
The concept of colors is discussed on this page. Read about primary colors, how complementary colors are created, what the process of color subtraction is, pigments and dyes, plus more. Also included are interactive Java tutorials.
University of Illinois
University of Illinois: Photosynthesis and the Web
Page describes Photosynthesis in great detail. Provides an extensive amount of links on all different aspects of photosynthesis. Very thourough.
University of Arizona
University of Arizona: Fate of Excited Pigment Molecules
Biology Project tutorial from the University of Alabama explains the molecular events that occur as a pigment molecule absorbs a photon of light during photosynthesis.
University of California
Ucmp: Photosynthetic Pigments
The University of California provides an overview of photosynthetic pigments includes definition, importance in photosynthesis, and description of 3 basic classes of pigments.
Texas Instruments
Texas Instruments: Chemistry of Autumn
This activity is designed to check student understanding of the chemistry of pigments and introduce spectroscopy using a relevant natural event.
University of Colorado
University of Colorado: Physics 2000: Temperature and Absolute Zero
A thorough, multipage discussion of color and color television sets that explains how an image is formed on the television using red, green, and blue light. Understandable discussion, excellent graphics, and many interactive Java applets.
Science Education Resource Center at Carleton College
Serc: Determination of Chlorophyll in Olive Oil Using the Vernier Spectrometer
In this activity, students investigate how much chlorophyll is in olive oil using a Varnier Spectrometer.
TED Talks
Ted: Ted Ed: What Is Chromatography?
Find out why leaves change color in the fall, and learn how to do paper chromatography to separate the pigments found in a leaf. [4:24]
Open Curriculum
Open Curriculum: Into the Chloroplast: How Photosynthesis Works
This article allows students to understand the process of photosynthesis and how chloroplasts, thylakoids, and pigments are involved.
Other
World of Molecules: Molecules of Color
Investigate the three-dimensional structure of various molecules of pigment structures.
Science is Fun
University of Wisconsin Madison: Chlorophyll
This site on chlorophyll discusses what it is, its structure, molecules with similar structure, its role in photosynthesis, and its absorption spectrum.
Exploratorium
Exploratorium: Science Snacks: The Three Little Pigments
For this activity, you print different colors of the same image onto acetate, then explore the different color effects you get when they are overlaid on each other in various combinations.
CK-12 Foundation
Ck 12: Physical Science: Color
[Free Registration/Login may be required to access all resource tools.] Overview of the different colors in visible light and how they relate to its wavelength, how a prism separates visible light into its different colors, the colors of...
Physics Classroom
The Physics Classroom: Light Waves/color: Absorption, Reflection, Transmission
In this physics classroom, students learn how and why light of certain frequencies can be selectively absorbed, reflected or transmitted.
Physics Classroom
The Physics Classroom: Light Waves and Color: Color Subtraction
In this physics tutorial, students learn how materials that have been permeated by specific pigments will selectively absorb specific frequencies of light in order to produce a desired appearance.
PBS
Nh Pbs: Nature Works: Photosynthesis
This resource identifies the main parts of the photosynthesis process. Learn more about how sunlight plays in plant growth.
BiologyWise
Biology Wise: How to Extract Chlorophyll Easily
Presents four simple techniques for extracting chlorophyll from leaves.
Concord Consortium
Concord Consortium: Photosynthesis
Focus on how certain molecules called pigments interact with light and determine the color of plants. Explore how molecules such as chlorophyll interact with light and gain energy. This energy is used by plants to make sugar and release...
Texas A&M University
Texas A&m University: Photosynthesis
Page provides background on photosynthetic process as well as factors affecting photosynthesis (page 24).
Physics Classroom
The Physics Classroom: Color Addition
This tutorial on the addition of color to light discusses the primary, complimentary, and secondary colors of light.
Alabama Learning Exchange
Alex: Plants, Pigments and Colors
In this hands-on, inquiry based instructional activity students will see the role of pigments in the in the process of photosynthesis. Students will use the process of chromatography to separate plant pigments. Students will then see the...
Science Fun for Everyone
Science Fun: Changing of the Leaves
Learn why leaves change colors in the fall with this science experiment.