____________ is the ability to cause change and do work.
Energy
The sun provides ___________ and ___________.
light; heat energy
There forms of energy are: 1. 2. 3. 4.
Solar power is energy from the ______.
sun
Wind energy uses _____ to do the work.
wind
Water energy comes from ________ water.
moving
Fossil fuels are fuels that formed from decayed _________ and _________ that lived long ago.
plants; animals
Four examples of fossil fuels are: 1. 2. 3. 4.
Nonrenewable resources have a ________ amount of energy.
limited
Renewable resources have energy that can be ___________.
renewed (or restored)
Three examples of renewable energy are:
1.
2.
3.
Potential energy is ________ energy.
stored
Kinetic energy is the energy of ________.
motion
What is the flow of energy from one place to another?
electricity
What kind of power comes from a fuel called uranium?
nuclear power
What is the source of almost all energy on Earth?
Sun
What are two renewable resources that can be used to generate electricity?
2. flowing water
Wood comes from _______.
trees
Wood has many important uses including its use as ______.
fuel
The formation of fossil fuels takes __________ of years.
millions
Renewable energy means energy that can be __________. They can be made ________.
replaced. again.
Nonrenewable resources means that once they are used up, they are gone and ________________ or ________.
cannot be replaced or made again.
What is an example of wind as a natural energy?
windmills
What is an example of sun as a natural energy?
solar panels for energy in a home