Non-renewables
How long do fossil fuels take to form?
Fossil fuels take millions of years to form
What is the earth's main source of energy?
The sun is earth's main source of energy
What is hydroelectric power?
Hydroelectric power is moving water used to make electricity
What is wind and how does it move?
Wind is the horizontal movement of air and it moves by convection
What does biomass include?
Biomass includes wood, grains, plant materials, and waste materials
What are the four main fossil fuels?
Coal, Oil, Natural gas, and Uranium
What are three problems with solar energy?
Three problems are that the sun doesn't always shine, its not always super efficient, and it can be very expensive
How much of the world's electricity is provided by water (hydroelectric) power?
Almost one fifth of the world's electricity is provided by water (hydroelectric) power
Fill in the blank.
Moving air can make a turbine spin, when it spins it_____.
Moving air can make a turbine spin, when it spins it produces electricity
Where does geothermal energy come from?
Geothermal energy comes from the earth's internal heat
Renewables can be replaced as quickly as they are used. True or False?
False
Where does sunlight get turned into electricity?
Sunlight gets turned into electricity at solar power plants
What kind of energy does water hold when it is in the reservoir?
When water is being held in the reservoir it holds potential energy
What does wind power use as a source of energy?
Wind power uses moving air as a source of energy
How are hot springs and geysers produced?
They are produced by water that is heated by magma or hot rocks below earth's surface
What is a big problem involving burning fossil fuels?
Burning fossil fuels releases great amounts or pollution
What carries solar energy through empty spaces?
Radiation carries solar energy through empty space
What are two benefits of hydropower?
Hydropower causes less pollution than many other kinds of energy and it is a renewable resource
What are the benefits of wind power?
The benefits are that it is clean: does not release pollutants or carbon dioxide and it is plentiful nearly everywhere
Fill in the blank.
Iceland gets almost____of its electricity from geothermal energy.
Iceland gets almost 1/4 of its electricity from geothermal energy
Fill in the blank.
_______ are the greatest source of modern society.
Fossil fuels
How do thermal solar plants work?
Thermal solar plants use the heat from the sun to collect and focus heat on one place, then it is turned into electricity
What are the three major problems about hydropower?
The three major problems are that dams and turbines can change downstream environments, dams can slow release of silt, and it stops a streams flow which may cause loss of habitat and homes
What are the problems with wind power?
The problems are that there is not always enough wind to make the windmills spin, the wind turbines are very expensive, and windmills are not welcomed at all residents due to them being unattractive on property
What is the largest geothermal plant?
The largest geothermal plant is the Geyser Geothermal Resource Area