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Really Rad Reverse Osmosis Quiz
by Staff
Reverse osmosis is a process that can be used to separate two substances. Take this quiz to test your knowledge of reverse osmosis and how we use it.

Reverse osmosis uses what three substances?

  • solute, solvent and solution
  • water, salt and saltwater
  • red, white and blue

If you have salt, water, and saltwater, which substance is the solution?

  • Osmosis.
  • Saltwater.
  • Water.

What is one thing that happens in osmosis?

  • Plants grow more leaves.
  • A solvent will filter through a membrane.
  • Water will shoot out of a spout.

What is a good example of a semipermeable membrane?

  • Tin foil.
  • Grape jelly.
  • Gore-tex.

How does reverse osmosis differ from osmosis?

  • It happens upside down.
  • It makes the solvent move to where the lower concentration solute is.
  • It makes water from air.

How does reverse osmosis occur?

  • It just happens naturally.
  • It happens when you shoot water out of a spout.
  • It happens if pressure is added to the solution.

Osmosis occurs naturally where?

  • Only in Canada.
  • The cells in our body.
  • Swimming pools.

Why does a solvent want to move to a higher concentration solution?

  • To make two solutions more equal.
  • Solvents like sweet things, like in a sugar solution.
  • Solutes need water to survive.

Why does drinking saltwater make us sick?

  • Because of the algae in the water.
  • Because saltwater hasn't been osmosised..
  • Because osmosis causes the saltwater to draw water out of our cells.

What plants and animals use osmosis?

  • Mammals and elm trees.
  • Any animals with a face, or any plant with leaves.
  • All animals and plants use osmosis.

Where can you use reverse osmosis in your own home?

  • With a reverse osmosis water filter.
  • When you boil saltwater.
  • When you run the dryer.

What's the most common form of reverse osmosis?

  • Making cheese.
  • Taking salt out of water.
  • Scraping jam off of toast.

What's one thing reverse osmosis could NOT do?

  • Remove fluoride from water.
  • Filter out all bacteria from water.
  • Remove sugar from tea.

Along with removing salt from water, what else can reverse osmosis do to create safe drinking water?

  • Make water resistant to carcinogens.
  • Keep fluoride at a safe level without removing it.
  • Filter wastewater to use a "toilet-to-tap" drinking supply.

Which industry does NOT use reverse osmosis?

  • dairy industry
  • recycling industry
  • neither of the above

What common household condiment is made through reverse osmosis?

  • Ketchup.
  • Relish.
  • Maple syrup.

What is one of the disadvantages of reverse osmosis water filters?

  • It's an ugly machine.
  • It's quite expensive.
  • It makes water taste like hazelnuts.

What's one way reverse-osmosis desalination plants help recover costs?

  • Recycling energy with water power.
  • Selling salt to sodium-deprived countries.
  • Getting celebrities to shill for their used-to-be-sea water.

What could reverse osmosis do for wine-making?

  • Reverse osmosis can make wine less alcoholic.
  • It could make red wine less red.
  • It could make wine taste like water.

What does NOT need to occur for reverse osmosis desalination to work?

  • Chemical pretreatment of water.
  • Regular filter cleanings.
  • Adding a tiny bit of sugar to lessen the salt concentration in the seawater.