Problem 1
After entering a dark room, you turn on a wall switch but the light does not come on. Suggest at least three hypotheses that might explain this observation.
Problem 2
Each of the following statements may either be a hypothesis (H), a theory (T), or an observation (O). Use one of these letters to identify each statement. Briefly explain each choice. a. A scientist proposes that a recently discovered large ring-shaped structure is the remains of an ancient meteorite crater. b. The Redwall Formation in the Grand Canyon is composed primarily of limestone. c. The outer part of Earth consists of several large plates that move and interact with each other. d. Since 1885 , the terminus of Canada's Athabasca Glacier has receded 1.5 kilometers. e. The universe originated about 13.7 billion years ago with a period of rapid expansion called the big bang.
Problem 3
Consider the possible results of the following scenario and describe one positive and one negative feedback. Earth is getting warmer, consequently evaporation is increasing.
