Introduction to the Scientific Method
Visit this site for an introduction to the scientific method. Scroll down to Common Mistakes in Applying the Scientific Method. How could a scientist’s own bias affect the outcome of an experiment?

The Scientific Method
Go to this site to learn more about the scientific method and about the differences among facts, hypotheses, and theories in science. Click on any of the highlighted questions to learn more about that area of science. What is Ockham’s razor? How does this statement impact the scientific method?

The Scientific Method
At this site you can learn more about how to use the scientific method to plan and carry out experiments. Scroll down to some examples to see how you might use the scientific method in your everyday life to make decisions and identify how to respond to common situations.

Homeostasis
Visit this site for a brief discussion of what homeostasis is and how the human body maintains homeostasis. Why do complex systems need to maintain homeostasis?

Homeostasis
Go to this site by Penn Valley Community College to learn about homeostasis in living systems. Homeostasis operates even at the cellular level. What is contact inhibition? How is this an example of homeostasis?

Homeostasis and Negative Feedback
At this site you can read a brief description of homeostasis in living things. How does negative feedback enable us to maintain homeostasis?

What is homeostasis?
Go to this site by Scientific American magazine to read a description of homeostasis in the human body, in Earth’s environment, and in society. How does cybernetics relate to homeostasis?

UCMP Phylogeny Wing: The Phylogeny of Life
Visit this site by the Museum of Paleontology, University of California, Berkeley to learn more about the three domains of life: Archaea, Bacteria, and Eukaryota. Click on the Archaea to find out what organisms make up this domain. Where on Earth do most of the Archaea live?

Three Domains of Life
Go to this site to see a table that differentiates among the Eukarya, Eubacteria, and Archaea. The table includes descriptions of energy-producing structures, types of DNA and RNA, and structure of the cell membrane in each of these domains. Do the Archaea have cytoskeletons?

Classification Lab
At this site you can learn more about the three domains of life and the relationships among them. Of the three domains of life, which two are thought to have diverged from each other early in the evolution of life?

Welcome to the Rainforest
Go to this site to learn more about the Amazon rainforest. You can find information about plants found in the rainforest and their potential uses as medicines. Scroll down to find out how the harvesting of rainforest products can be more profitable economically than clear-cutting the forest for farming is. What products can be harvested from the rainforest without cutting down the trees?

Journey into Amazonia
At this site by the Public Broadcasting System you can find out about the plants, animals, and people who call the Amazon rainforest home. Click on powerful plants to find out more about the useful plants of the rainforest. Hevea brasiliensis is a tree that grows in the Amazon rainforest. What important product is produced from this tree?

Rainforest Resources/Facts
Go to this site for statistical information on the disappearing rainforests of the world. Scroll down to read about species extinction. How many species are lost every day due to tropical deforestation?