National Wildlife Federation
The Water Cycle
Observe the water cycle from the comfort of your classroom with this excellent earth science experiment. Working collaboratively, young scientists first create terrariums complete with hills, plants, lakes, and an...
National Institute of Open Schooling
Air Pollution
Seventy percent of the air pollution in China is due to car exhaust. Under the umbrella of environmental chemistry, learners extensively explore air pollution. From the makeup of our atmosphere to sources of major air pollutants, classes...
Wilderness Classroom
Pollution
Educate scholars on pollution—air, water, and land—with a series of lessons that begin with a thorough explanation of each type. Learners then take part in three activities to reinforce the importance of reducing pollution. They...
CK-12 Foundation
Ck 12: Biology: Plant Life Cycles Study Guide
Understand the reproduction and life cycle of plants.
Khan Academy
Khan Academy: The Calvin Cycle
Learn about the three stages of the Calvin Cycle reactions: carbon fixation, reduction, and regeneration of the starting molecule. See how the products of the light reactions, ATP and NADPH, are used to fix carbon into sugars in this cycle.
University of Illinois
University of Illinois Extension: Great Plant Escape: What Is the Life Cycle of a Plant?
In this interactive lesson, students learn about categories of plants, plant parts, life cycle, what plants need to grow, and edible plant parts.
Globio
Glossopedia: Plants
Plants are one of the two major Kingdoms of living creatures on the Earth. They are the only beings which produce their own food. Additionally, plants are necessary for animals to live. Plant anatomy, life cycle, reproduction and the...
Other
Wake Forest University: Angiosperms Reproduction/life Cycle
This informative resource describes the advances that angiosperms possess over conifers. It also looks at the parts of a flower, how fruit develops and the life cycle of an angiosperm.
Channel 4 Learning
Channel 4 Learning: Science Essentials: Life Cycles
Learn about the life cycles of plants and animals then demonstrate what you know with activities, a quiz, and related resources.
Ohio State University
General Plant Biology: Angiosperm Life Cycle
Photomicrographs and diagrams make this resource a great tool for studying reproduction and development. Use this along with your lab material on plants.
University of Maryland
Umbc/plant Growth and Development
A good description of the growth and changes in plants from the seed through the adult plant. College level discussion that includes the chemicals involved in the regulation of plant growth.
BiologyWise
Biology Wise: Life Cycle of Angiosperms
Describes the characteristics of angiosperms, or flowering plants, the parts of the flower involved in reproduction, pollination, fertilization, and the production of fruit and seeds.
Ohio State University
General Plant Biology: Development: Flowering to Senescence
A good overview of the development of plants. Includes a section on the dormancy of plants that covers the basics.
NC State University
Horticulture Information Leaflets: Overcoming Seed Dormancy: Trees and Shrubs
Good list of examples of how dormancy in tree seeds can be overcome. In the discussion, you'll pick up a fair amount about dormancy in plants.
Khan Academy
Khan Academy: Photorespiration
Photorespiration is a wasteful pathway that competes with the Calvin cycle. Explore why photorespiration happens, when it's most likely to take place, and how it actually works.
Other
Fermilab Flora and Fauna Virtual Exhibit: The Monarch Butterfly and Milkweed
This site traces the life cycle of the monarch butterfly and contains links for more in depth study of the terms presented.
Georgia State University
Georgia State University: Hyper Physics: Energy Cycle From Plants to Animals
Find out about the essential role energy plays in cell function and in sustaining life. Trace energy transformations as they pass from one living thing to another.
Ohio State University
Ohio State University: Plant Transpiration & Translocation
This is a good explanation of plant water balance issues and carbon fixing cycles. Transpiration processes are explained well with links to additional information.
Other
Need: Exploring Nuclear Energy [Pdf]
This downloadable article addresses all aspects of nuclear energy. Visual charts make understanding of cycles and concepts easier. Most useful for older students and educators. PDF (requires Adobe Reader).
Other
Study of Northern Virgina Ecology: Black Carpenter Ant
Lots of information about the black carpenter ant. Learn about their physical characteristics, colonies, life cycle, food sources, and predators. A detailed chart listing many plants and animals permits exploration of their relationships...
Encyclopedia of Earth
Encyclopedia of Earth: Microbiology: Virus
Article explaining what viruses are, their evolution, taxonomy, morphology, and replication. Also covers mechanisms by which viruses cause disease, how they can impact on plants, and the potential and real benefits we get from...
Encyclopedia of Earth
Encyclopedia of Earth: Botany: Mangrove Ecology
Extensive article on mangroves. Covers classification, physical characteristics, life cycle, habitat, economic value, and natural and human threats to their survival.
BiologyWise
Biology Wise: Gametophyte and Sporophyte
This resource explains how the alternation of generations occurs in a plant's life cycle where sporophytes and gametophytes each play a role in plant reproduction.
BiologyWise
Biology Wise: Cellular Respiration in Plants
Explains what cellular respiration is, its function, and the three stages it goes through when it takes place in a cell.
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