Chapter 11 Energy Resources
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- Over millions of years, fossil fuels were formed from __________________.
- decayed plants and animals
- Resources that cannot be easily replaced once they are used are called ___________________.
- nonrenewable
- _____________ involves the splitting of an atom.
- fission
- Uranium is often used in nuclear power plants because it _____________________.
- consists of the easiest atoms to split
- An advantage of using nuclear nuclear power plants for energy production is ______________________.
- fossil fuels are conserved
- Solar energy is produced by reactions that take place in the ______________.
- sun
- Solar energy can be changed directly into electricity by a device called a solar _____________.
- cell
- Which kind of energy works best during daylight hours and in regions near the equator?
- solar
- Hydroelectric power plants depend on what energy source?
- moving water
- Why are hydroelectric power plants not built in many regions?
- they require a lot of space
- Whether or not a place is suitable for a tidal power plant depends on the ____________________________
- difference between the heights of the tides
- Give a step that helps produce electricity in a tidal power plant.
- water spins the blades of a turbine
- What is an advantage of using wind energy for electricity?
- wind is a renewable resource
- Which two kinds of energy come from similar sources?
- fossil fuel and biomass
- Which kind of energy comes from nuclear reactions?
- solar
- An unheated building has large windows. When the sun is out, this building becomes warm even on a cold day. Which source of energy makes the building warm?
- solar
- Partly decayed moss plants, called peat, can be burned as a heat source. What kind of fuel is peat?
- biomass
- A town conducts a survey to find out how many houses have solar power collectors. Two houses on Elm Street and six houses on Plaza Avenue have collectors. Three houses on Mill Street and eight houses on Berry Street also have collectors. Construct a bar
- Label the graph with the number of houses with collectors and the street names
- Energy from the natural heat within the earth's crust is called __________________
- geothermal energy