Mid-term Review The following questions deal with the general concepts of each unit. You should be able to answer each of these questions. In addition to this, I recommend that you create a vocabulary list for each unit using your notebook and text. From these terms create a concept map for each unit by linking and defining them. Introduction and general chemistry (Chapters 1, 2.1, 2.2, and 8 in Earth Science text) - List the three phases of matter. - Draw and label the parts of an atom. - Explain the two main types of chemical bonds. Explain the numerical concept of electron energy levels. - Explain all the steps of the scientific method. - Explain the significance of the big bang, and meteorite impact theories. - Explain the relationship between the Doppler effect and red shift. - State what Eratosthenes discovered and how. - Describe how the earth moves and is positioned as a planet. - List appropriate units for types of measurements such as mass, distance, volume, and temperature. Be able to convert units within the metric system. Ecology ( Unit 1 in Environmental Science text, handouts and laboratory manuals) - Explain the concept of ecology using the terms environment and ecosystem. - Explain what abiotic and biotic factors are, and list five examples of each. - Explain the difference between habitat and niche. - Explain how abiotic factors affect organisms in a forest, grassland, and stream. - Explain the concept of biodiversity, and its relationship to tropical rain-forests. - Explain population dynamics by using the terms population, population density, census, limiting factor and carrying capacity. - Order the four layers of a forest by giving two characteristics for each layer. - List 4 dominant tree, shrub, and animal species in our area. - List all the parts of a food web. - Explain the energy pyramid and how energy moves through an ecosystem. - Give several examples of limiting factors - List several introduced species and explain why they are a problem. - List several reasons why species have become endangered. - List pros and cons to timber harvesting. - Explain two types of timber harvesting techniques. - Be able to diagram the nitrogen, and carbon-oxygen cycles. Energy and natural resources (Unit 5 in Environmental text, laboratory manual and chapter 11 in earth Science text) - State the two laws of energy. - Give an example of potential and kinetic energy, and relate the definition of energy to work and force. - List three examples of renewable and non-renewable resources. - Define the process of how fossil fuels formed. Describe the four stages of coal formation. - Describe three ways oil, natural gas, and coal are both similar and different as energy sources.