University of Illinois
University of Illinois Urbana Champaign: Embryology: The 21 Day Chick Lifecycle
Provides a look at the development of a chick during each day of the 21-day chick lifecycle. Gives detailed information about the major events that happen each day in the development. Contains many photographs of real chicks in...
US Geological Survey
Usgs: Water Cycle for Schools
The U.S. Geological Survey (USGS) and the Food and Agriculture Organization of the United Nations (FAO) have teamed up to create a water-cycle diagram for schools. Use the interactive version and download printable files of the diagram.
US Geological Survey
U.s. Geological Survey: Water Cycle
An in-depth explanation of the Earth's water cycle, including a hyperlinked diagram that provides direct access to information about each phase in the cycle.
US Geological Survey
U.s. Geological Survey:the Water Cycle for Kids and Students: Advanced Students
Hyperlinked diagram provides an in-depth explanation of each phase of the Earth's water cycle.
University Corporation for Atmospheric Research
Ucar: The Water Cycle
Water can be in the atmosphere, on the land, in the ocean, and underground. It moves from place to place through the water cycle.
Environmental Education for Kids
Eek!: Water Wonders: Round & Round It Goes! The Water Cycle
Presents a water cycle diagram with information about the different stages, a 10-question groundwater quiz, and a water poem.
Khan Academy
Khan Academy: Infographic: Life Cycles of the Stars
Look at the life cycle of a star on this easy to understand infograph.
University of Washington
University of Washington: Water Cycle
This page from the University of Washington has an excellent diagram of the water cycle. There are 8 water cycle hands on activities on the bottom of the page. Also there is a link to a teacher reference page.
Indiana University
Indiana University Bloomington: The Rock Cycle With Geologic Settings [Pdf]
A colorful diagram of the rock cycle showing the stages that rocks go through as they are transformed by different processes such as weathering, lithification, and crystallization.
Sumanas
Sumanas Inc: Life: The Science of Biology: Life Cycle of a Moss
Studying mosses? Here is a great animation on the reproductive cycle of a moss.
Other
Vida: Life Cycle of the Monarch Butterfly
Use these images to study the monarch butterfly's life cycle.
Other
Managing Wholes: Water Cycle Basics
A great slideshow that compares an effective water cycle with an ineffective one. Content can be read in five different languages.
Annenberg Foundation
Annenberg Learner: Journey North: Judy Brophy: The Sun's Daily Cycle
Impressive animated slideshow presentation on the sun's daily cycle and how the sunlight changes hour by hour over the course of a day. Includes a teacher guide with lesson plan ideas and activities.
Indiana University
Indiana University Bloomington: Reference Documents: Rock Cycle [Pdf]
A simplified version of the rock cycle showing the three types of rocks and the transformational processes that occur between each pair of rock types.
Other
Alken Murray: The Phosphorous Cycle
A diagram which clearly illustrates the phosphorous cycle in a somewhat technical manner.
Other
Malaria Foundation International: Life Cycle of the Malaria Parasite
This site has a diagram of the life cycle of the malaria parasite.
Sophia Learning
Sophia: Krebs Cycle: Lesson 3
This lesson will introduce the Kreb's cycle and explain how it is used to convert pyruvic acid into carbon dioxide. It is 3 of 6 in the series titled "Krebs Cycle."
Sophia Learning
Sophia: Calvin Cycle: Lesson 3
This lesson will introduce the Calvin cycle, and explain how it converts carbon dioxide to sugar. It is 3 of 4 in the series titled "Calvin Cycle."
Sophia Learning
Sophia: Calvin Cycle: Lesson 4
This lesson will introduce the Calvin cycle, and explain how it converts carbon dioxide to sugar. It is 4 of 4 in the series titled "Calvin Cycle."
Center for Literacy and Disability Studies, University of North Carolina at Chapel Hill
Tar Heel Reader: The Water Cycle
Learn about the water cycle from this "book" that includes bright pictures and descriptions. Learn about precipitation, condensation, and evaporation and see examples of each phenomenon.
![Epa: The Water Cycle [Pdf] Graphic](https://content.lessonplanet.com/knovation/original/42176-ac4345d9392f3783430ed3628fd17cec.jpg?1661261553 "Epa: The Water Cycle [Pdf] Graphic")
US Environmental Protection Agency
Epa: The Water Cycle [Pdf]
An illustrated diagram of the water cycle that students can use for study.
Tom Richey
Slide Share: Energy Flow and Nutrient Cycle
Read 37 slides on energy flow and the nutrient cycle.
NASA
Nasa: Introduction to Clouds [Pdf]
NASA is interested in clouds because they are an integral part of the water cycle, and because they are a controlling factor in the energy budget of the Earth. This chart provides a basic introduction to the identification of clouds. The...
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