Name: ________________________________________ Block: _____ Date: _____/_____/_____ ENVIRONMENTAL SCIENCE Read Chapter 1, Section 1 in the textbook (pages 4 – 15). Fill in the blanks with a word or phrase that best completes each item. Chapter 1 – Section 1: Understanding Our Environment I) What Is Environmental Science? A) Environmental science is a relatively new field that studies the impact of _______________________ on the environment. B) One of the major goals of environmental science is to ______________________________ and _______________ environmental problems by studying two types of interactions. 1) One area of study focuses on __________________________________________________________. 2) The other area of study focuses on ______________________________________________________ __________________________________________________________________________________. C) Environmental science is an ______________________________ science, which means it involves many fields of study. 1) ____________________ is the foundation of environmental science which studies how ____________ __________________________________________________________________________________ __________________________________________________________________________________. 1 Name: ________________________________________ Block: _____ Date: _____/_____/_____ ENVIRONMENTAL SCIENCE 2) ____________________ is the study of living organisms. 3) ____________________ science is the study of the earth’s nonliving systems and the planet as a whole. 4) ____________________ is the study of matter and energy. 5) ____________________ is the study of chemicals and their interactions. 6) ____________________ sciences are the study of human populations. II) Scientists as Citizens, Citizens as Scientists A) Environmental scientists are often asked to share their research __________________________________. B) The observations of non-scientists are the first step towards _____________________________________ _____________________________________________________________________________________. 2 Name: ________________________________________ Block: _____ Date: _____/_____/_____ ENVIRONMENTAL SCIENCE III) Our Environment Through Time A) Hunter-Gatherers 1) For most of human history, people were hunter-gatherers, or people who obtain __________________ __________________________________________________________________________________ __________________________________________________________________________________. 2) Hunter-gatherer societies still exist today in the ____________________________________________ __________________________________________________________________________________. B) The Agricultural Revolution 1) Agriculture is the practice of ___________________________________________________________ __________________________________________________________________________________. 2) These practices had such a dramatic impact on human societies and their environment that it is often called the _________________________________________________________________________. 3) The agricultural revolution changed ____________________________________________________. 4) As grasslands, forests, and wetlands were replaced with farmland _____________________________ __________________________________________________________________________________. C) The Industrial Revolution 1) A period beginning in the middle of the 1700’s where human greatly increased their usage of ______________________________ and ____________________. 2) Fossil fuels and motorized vehicles allowed food and other goods to be _________________________ __________________________________________________________________________________. 3 Name: ________________________________________ Block: _____ Date: _____/_____/_____ ENVIRONMENTAL SCIENCE D) Improving Quality of Life 1) The Industrial Revolution introduced many ______________________________________________. 2) The Industrial Revolution also introduced many new _______________________________________. (a) Modern societies began to use ______________________________________________________ _______________________________________________________________________________. (b) Much of environmental science is concerned with the ____________________________________ _______________________________________________________________________________. IV) Spaceship Earth A) Earth has been compared to a spaceship traveling through space because it is essentially a _____________ ____________________. B) Environmental problems can also occur on different scales: 1) ____________________ 2) ____________________ 3) ____________________ C) Population Growth: A Local Pressure 1) The ______________________________ and ______________________________ revolutions allowed the human population to grow much faster than it had ever grown before. 2) Human population almost ______________________________ during the 20th century. 3) Pressure on the environment will continue to ____________________ as the human population and its need for resources _______________. V) What Are Our Main Environmental Problems A) Resource Depletion 1) Any material that is used by humans is called a ___________________________________________. (a) A renewable resource is ___________________________________________________________ _______________________________________________________________________________. 4 Name: ________________________________________ Block: _____ Date: _____/_____/_____ ENVIRONMENTAL SCIENCE (b) A nonrenewable resource is ________________________________________________________ _______________________________________________________________________________. 2) Resources are said to be ____________________ when a large fraction of the resource has been used up. B) Pollution 1) Pollution is ________________________________________________________________________ __________________________________________________________________________________ __________________________________________________________________________________. (a) Biodegradable pollutants __________________________________________________________ _______________________________________________________________________________. (b) Non-biodegradable pollutants are ____________________________________________________ _______________________________________________________________________________. C) Loss of Biodiversity 1) Biodiversity refers to _________________________________________________________________ __________________________________________________________________________________. 2) The organisms that share the world with us can be considered ________________________________ so it is important to preserve them. 5