Review Vocabulary

Decomposers

• An organism that breaks down dead organisms and releases nutrients back into the environment.

• A type of plant that produces its own food through photosynthesis.

• A consumer that feeds on living organisms for energy.

• An organism that creates energy from sunlight and converts it into chemical energy.

Emissions

• Substances that are released into the air, water, or other environments, usually by factories or cars.

• Only gases that contribute to air pollution.

• Waste materials that are disposed of in landfills.

• Products that are manufactured in factories.

Variable

• A constant that does not change.

• A factor that is likely to change or vary.

• A fixed value in an equation.

• An unchangeable element in a system.

Biosphere

• The region of the Earth that encompasses all living organisms (bio=life).

• A layer of the Earth's atmosphere where weather occurs.

• The part of the Earth where rocks and minerals are found.

• The area of the Earth that is covered by water.

Mechanical Energy

• Energy that an object has because of its motion or its position (a bike moving from point A to point B).

• Energy stored in the bonds of chemical compounds.

• Energy that is transferred from one object to another due to a temperature difference.

• Energy that is associated with the gravitational field of an object.

Carnivore

• An animal that eats only meat.

• An animal that eats only plants.

• An animal that eats both plants and meat.

• An animal that primarily eats fruits.

Parasitism

• A symbiotic relationship where both organisms benefit.

• A symbiotic relationship where one organism is harmed and the other benefits.

• A relationship where organisms compete for the same resources.

• A relationship where one organism lives inside another without causing harm.

Potential Energy

• Stored Energy

• Kinetic Energy

• Thermal Energy

• Mechanical Energy

Population

• A group of organisms of different species that live in the same area at the same time.

• A group of organisms of the same species that live in the same area at the same time.

• A collection of all living organisms in a specific ecosystem.

• A random assortment of organisms found in various locations.

Timber

• Prepared wood

• Raw wood

• Wooden furniture

• Wood pulp