Forte 7th grade Science Review 2nd 6 weeks

A _____ is a living thing, such as a plant, that can make its own food

producer

A _____ cannot make its own food. It must feed on other
things for food and energy.

consumer

Animals that hunt and feed on other animals are _____.

predators

Food is an example of what kind of potential energy?

chemical

What kind of energy transformation takes place in a solar (photovoltaic) cell?

light energy to electrical energy

A wind turbine produces electricity from what kind of energy?

mechanical

When it is 12:00 AM on a clock that is plugged into a wall outlet, the clock lights up with a time display, What kind of energy transformation takes place?

Electrical energy to light energy

A coal-burning power plant produces electricity from what form of energy?

chemical

The following is an organic compound?

C3H8

The following is a lipid that we eat.

vegetable oil

What kind of compounds contain carbon and hydrogen?

organic

We use hydrocarbons primairly for.

fuel in cars and factories

The following is an inorganic compound?

AgNO3

The following is an organic compound?

glucose

Which of the following is a synthetic organic compound that is often used in clothing?

polyester

A compound that contains only the elements sodium,nitrogen,and oxygen would be classified as?

inorganic

Which organism is a producer in this terrestrial ecosystem?

Green Plants

What is one possible predator/prey relationship in this terrestial ecosystem?(Predator is listed first)

Snake/mouse

Animals that hunt and feed on other animals are______?

Predators

why are green plants a criltical part of a food web?

They convert sunlight into chemical energy fodr use by other orfanisms.

Diatoms are single-celled organisms containing chlorapyll that can be found in the ocean. Why are diatoms important to other organisms?

They are producers that provide food for other ocean dwelling organisms.

The decrease in the number of mice in the food chain would result in?

A decrease in the number of hawks.

A food web shows:

The feeding relationships among organisms in an ecosystem