Name: ___________________________________ Date: ____________________ Science Spiral Review 1. What nonrenewable resource heats homes? ______________________ Monday 2. One proposal for reducing global warming is to decrease the use of fossil fuels and increase the use of renewable energy. Which statement explains why using renewable energy will help reduce global warming? A. Renewable energy sources are more efficient than fossil fuels. B. Renewable energy sources produce fewer greenhouse gases than fossil fuels. C. Fossil fuels require more expensive technology than renewable energy sources. D. Fossil fuels produce chemicals that destroy ozone, but renewable energy sources do not. 3. Formulate a list of natural resources used to supply energy. ________________ _________________________________________________________________ ______________________________________________________________ 1. From 1850 to 2000, several different types of energy have been used in the United States, such as hydroelectric energy, as well as energy produced from Tuesday burning wood, coal, oil, and natural gas. True or False All of these types of energy are renewable resources. 2. ___________________ _______________ is a record of the geologic events and life forms in Earth’s history. 3. What are some major events in the Earth’s geologic history? _______________ _________________________________________________________________ _________________________________________________________________ ____________________________________________________________ Wednesday 1. A scientist who studies the origin, history, and structure of the earth is known as a(n) _________________________. 2. True or False The study of rock layers and the sequence of events they reflect is called paleontology. 3. What are fossils and what can be learned from studying them? ______________ __________________________________________________________________ __________________________________________________________________ ________________________________________________________________ 1. A(n) _______________ ______________ is a fossil known to have lived in a Thursday particular geologic age that can be used to date the rock layer in which it is found. 2. What is the difference between a body and trace fossil? _____________________ ___________________________________________________________________ ___________________________________________________________________ 3. Explain the conditions necessary for fossilization to occur. ____________________ ___________________________________________________________________ _________________________________________________________________ 1. _____________________ typically describes a species that no longer has any known living individuals. 2. What is the difference between the absolute dating and relative dating of fossils? Friday __________________________________________________________________ __________________________________________________________________ 3. Using the law of superposition, explain how you know which organism lived further back in time. ________________________________________ ________________________________________ ________________________________________ ________________________________________