gr 7 science chapter 9 test

Match the description with the correct vocabulary word.

Where evaporation is used to purify seawater

• A. salt pan

• B. aeration

• C. herbicide

• D. landfill

Match the description to the correct vocabulary word

A substance that gives off radiation

• A. aeration

• B. radioactive

• C. herbicide

• D. landfill

Match the description with the correct vocabulary word

Mixing water with large volumes of air

• A. salt pan

• B. radioactive

• C. landfill

• D. aeration

Match the description with the correct vocabulary word

A chemical that kills plants

• A. aeration

• B. herbicide

• C. radioactive

• D. landfill

Match the description with the correct vocabulary word

A disposal for municipal waste

• A. radioactive

• B. salt pan

• C. landfill

• D. aeration

Which of the following has the highest boiling point?

• A. paraffin wax

• B. diesel fuel

• C. kerosene

• D. propane

Which of the following cannot be separated using filtration?

• A. air

• B. water

• C. oil

• D. solution

Sifting is used to separate mixtures in all but which of the following?

• A. making bread

• B. landscaping

• C. processing ore

• D. refining oil

Gas flaring is used as part of which of the following processes?

• A. refining oil

• B. landscaping

• C. treating sewage

• D. nuclear energy

Which of the following is not a process involved in treatment of waste water?

• A. aeration

• B. primary treatment

• C. tailing ponds

• D. tertiary treatment