Really Rad Reverse Osmosis Quiz
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?
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.
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?
- 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.