5th Grade Science Unit 3 Lesson 5 Renewable & Nonrenewable Resources
Terms in this set (23)
the remains or traces of ancient organisms preserved in soil or rock
Almost all fossils are found in ____________ rock.
a material that formed from the decay of ancient organisms & is used today as a source of energy
Each layer of rock is __________ than the layer above it & __________ than the layer below it.
a resource that can be used up faster than it is made
oil, natural gas, coal
3 main examples of fossil fuels
When fossil fuels are burned, they release ______________.
to run an engine,to provide heat for a home or to cook, to produce electricity
What can the energy from burning fossil fuels be used for?
Most of the electricity that people use is made in ______________________________.
After a generator produces electricity, it travels through _____________ to places where it is used.
a resource that can be replaced naturally in a short amount of time
fish, forests, wind, sunlight
What are some examples of living or nonliving renewable resources?
Any source of energy other than fossil fuels is called an _______________ energy source, such as wind or solar energy.
Examples of inexhaustible resources are energy from the ______________ or the _____________.
A hydroelectric plant uses ______________ to produce electricity.
They can only be used where there is moving water.
What is a disadvantage of a hydroelectric power plant?
They have to be located in areas where it is sunny most of the year.
What is a disadvantage of solar energy?
Electricity made this way is usually less expensive.
What is a good thing about using electricity made from nuclear energy instead of burning fossil fuels?
Heat that is produced inside Earth, or __________________ energy, causes geysers & hot springs.
This kind of energy is hard to reach.
What is a disadvantage of geothermal energy?
_____________ is made of materials from living things such as wood, animal waste, & plant materials.
Biomass does not release as much energy.
Why is it biomass better than the burning of coal, oil, or natural gas?
turn off lights, turn off water, turn off electronic equipment
What are some ways to conserve energy?