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Unit 7 - Earth's Resources

Across
Fossil fuels are the most ____________ used energy resource.
___________- - crude oil. Gasoline, diesel fuel, heating oil, kerosene
Energy that comes from the sun
Most of the renewable resources people use come from the _________.
___________ - organic matter from animal waste that is burned for energy
Coal forms from _____________ remains.
______________ energy - electric energy produced by moving water
______________ resources - any natural resources that are used by humans.
Energy - the ability to cause _________
___________ resource - natural resources used to generate energy
Plants convert carbon dioxide and water to oxygen and glucose
Petroleum and natural gas form from ___________- organisms.
Energy moves from _________ to form.
Earth’s natural resources provide everything we need for ____________ .
Energy is stored in objects or ___________ .
_____________ fuel - non renewable resource from a buried remains of plants and animals that lived long ago.
______________ resources - a natural resource that can be replaced at the same rate it is consumed.
All forms of energy can be _______________ into two major types: kinetic or potential.
energy can never be created or _____________.
Down
Fossil fuels are ________ , oil, natural gas, propane.
Energy _______________-- - change of one form of energy to another
Earth’s ______________ and distance from the sun allow it to support life.
The basics are air, water, source of energy and a ___________to live in.
______________ - energy produced by heat from the Earth’s interior.
Energy from the sun can be _____________- to plant, solar or moving (kinetic) energy.
Gases _____________Earth - not too hot, not too cold.
Trees are nonrenewable if they are not ___________or used up too fast.
_______________ need air, water, food and a place to live.
__________ energy is a type of potential energy.
____________ energy - energy an object has because of its position, shape or energy.
________________ resource - resource that forms much more slowly than it is consumed.
____________- resource - natural resources used to make objects, food or drink.
Fossil fuel - nonrenewable energy resource that forms from the ____________ of organisms that lived long ago
Kinetic energy - energy due to an object’s ______________-
________ energy - uses the force of moving air to drive an electric generator to do other work.
_________ energy - energy received by Earth from the sun in the form of radiation.
___________ - the nuclei of radioactive atoms are split in two or more fragments.