Curated OER
National Park Service: Science in Yellowstone National Park
Yellowstone National Park was established in 1872 and "is one of the last, nearly intact, natural ecosystems in the temperate zone of Earth. The Science Learning Centre provides information on numerous topics that include; biological and...
TeachEngineering
Teach Engineering: 3 Rc (Reduce, Reuse, Recycle and Compost)
In this lesson, young scholars expand their understanding of solid waste management to include the idea of 3RC (reduce, reuse, recycle and compost). They will look at the effects of packaging decisions (reducing) and learn about...
Encyclopedia of Earth
Encyclopedia of Earth: Biology
A large collection of articles covering many topics and specialized fields in the discipline of biology.
Fundación Cientec
Trivia: 30 Preguntas! Ciencias
Thirty questions to test your knowledge of upper elementary / middle level science (in Spanish). Covers energy, health, physics, technology, biology, chemistry, history of science, and earth sciences. You can choose between a Flash or...
Science Buddies
Science Buddies: Growing, Growing, Gone! An Experiment on Nitrogen Fertilizers
Plants need nitrogen to build proteins and nucleic acids to grow healthy stems and leaves. Though the Earth's atmosphere is made up of 79% nitrogen, the form of nitrogen found in the atmosphere cannot be used by plants. In this...
CK-12 Foundation
Ck 12: Life Science: Timeline of Evolution
[Free Registration/Login may be required to access all resource tools.] For life to evolve from simple single-celled organisms to many millions of species of prokaryotic species to simple eukaryotic species to all the protists, fungi,...
CK-12 Foundation
Ck 12: Life Science: Theory of Evolution by Natural Selection
[Free Registration/Login may be required to access all resource tools.] Do you ever wonder why some birds are big like ostriches and some birds are small like robins? Or why a lion has a mane while a leopard has spots? In the 19th...
CK-12 Foundation
Ck 12: Life Science: Human Population
[Free Registration/Login may be required to access all resource tools.] How quickly is the human population growing? If we look at worldwide human population growth from 10,000 BCE through to today, our growth looks like exponential...
Other
Sacnas: The Biography Project
This site profiles dozens of Chicano/Latino and Native American scientists. Most are still active in their field of research. Searchable by field of science. Also contains links to some fantastic science sites by topic.
Estrella Mountain Community College
Online Biology Book: The Nature of Science and Biology
Use the scientific reasoning and critical thinking to take an in-depth look at the basics of biology.
Open Curriculum
Open Curriculum: Water and Water Cycle
An illustrated article helps learners understand the water cycle and the distribution of Earth's water.
US Geological Survey
U.s. Geological Survey
The U.S. Geological Survey reports on the latest news affecting the earth today, as well as providing a wealth of data, reports, and information.
Untamed Science
Untamed Science: Biology: World Biomes: Mediterranean Climates: Chaparral Biome
Make learning about Earth's biomes fun and easy with video clips. Learn about the unique Chaparral climate characterized by mild, wet winters and warm, dry summers.
Untamed Science
Untamed Science: Biology: World Biomes: Estuaries Biome
Make learning about Earth's biomes fun and easy with video clips, photographs, and diagrams. Learn about estuaries, the water environments formed where freshwater from rivers or streams mix salt ocean water. [6:38]
CK-12 Foundation
Ck 12: Life Science: Preserving Water Sources
[Free Registration/Login may be required to access all resource tools.] It might seem like there is plenty of water on Earth, but that's not really the case. Water is a limited resource. That means that it is used faster than it is...
CK-12 Foundation
Ck 12: Physical Science: Photosynthesis Reactions
[Free Registration/Login may be required to access all resource tools.] The process of photosynthesis and its importance in life on earth, and examples of photosynthetic organisms.
Other
Clean Sweep u.s.a.: Energy to Burn [Pdf]
This informative and interactive site examines how we can get power from garbage. Topics include: waste to energy plants, only ash remains, a bright idea, and more.
TeachEngineering
Teach Engineering: Composting Nature's Disappearing Act
In this activity, students explore the idea of biodegradability by building and observing a model landfill. This serves as an introduction to the idea of composting. Students learn about the role of engineering in solid waste management.
TeachEngineering
Teach Engineering: Trash Talkin'
In this activity, students collect, categorize, weigh and analyze classroom solid waste. The class collects waste for a week and then student groups spend a day sorting and analyzing the garbage with respect to recyclable and non...
TeachEngineering
Teach Engineering: Solid Waste Takes Over
In this lesson, students explore solid waste and its effects on the environment. They will collect classroom trash for analysis and build model landfills in order to understand the process and impact of solid waste management. Students...
TeachEngineering
Teach Engineering: How Should Our Gardens Grow?
In this lesson, students will learn about types of land use by humans and evaluate the ways land is used in their local community. They will also consider the environmental effects of the different types of land use. Students will assume...
PBS
The Dating Game: Radiocarbon Dating
Part of PBS-NOVA Online. An excellent explanation of how radiocarbon dating is done and why it works. Great material for earth science, history or biology classes.
EL Education
El Education: San Diego Bay: 2008 Tide Calendar
Students complete original research to create a calendar. Each calendar month includes a page with informational text and original photographs featuring different endangered animals of the San Diego Bay including tidal information and a...
CK-12 Foundation
Ck 12: Life Science: Importance of Protists
[Free Registration/Login may be required to access all resource tools.] Humans could not live on Earth if it were not for protists. Why? Protists produce almost one-half of the oxygen on the planet, decompose and recycle nutrients that...