Water

Lead-in

  • Do you think water should be free? Why or why not?
  • Use your own words to describe: a drop, a puddle, a stream, a pool, a fountain, a river, a waterfall, a lake and a glacier.
  • What comes to mind when you hear the word ‘water’?

Presentation 1

Pre

  • How much water do you drink every day?
  • How do you feel when you don’t drink enough water?

Top Down

  • Why is water weird? Watch the video and find out.
  • It came from out of our world
  • It doesn’t follow the rules of Chemistry
  • It has an unusual color that our eyes can’t see
  • It’s the only substance that can’t be held
  • It expands when frozen
  • Hot water freezes faster than cold water
  • It came from out of our world
  • It doesn’t follow the rules of Chemistry
  • It has an unusual color that our eyes can’t see
  • It’s the only substance that can’t be held
  • It expands when frozen
  • Hot water freezes faster than cold water

Bottom Up

  • True or False

Example: There’s water on the Moon. > True

  1. Every molecule of water on the Earth has existed for billions of years.
  2. Even though water is a familiar part of our world, it is actually alien.
  3. A water molecule is made from two very heavy atoms.
  4. Gravity doesn’t work on water molecules.
  5. H2O is the second most common molecule in the universe.
  1. Every molecule of water on the Earth has existed for billions of years. True
  2. Even though water is a familiar part of our world, it is actually alien. True
  3. A water molecule is made from two very heavy atoms. False
  4. Gravity doesn’t work on water molecules. False
  5. H2O is the second most common molecule in the universe. True

Post

  • What information from the video is new to you?
  • What is the most interesting information mentioned in the video? Why?

Presentation 2

Pre

  • What are some examples of poison?

Top Down

  • How can too much water kill? Watch the video and find out.
  • Our stomach can’t digest more than 1 liter each half an hour.
  • The amount of blood increases fastly, causing our body to collapse.
  • The excess of water gets into the cell and makes it swell up, causing problems, especially for brain cells.
  • Too much water can form a substance that our body can’t process.
  • Our stomach can’t digest more than 1 liter each half an hour.
  • The amount of blood increases fastly, causing our body to collapse.
  • The excess of water gets into the cell and makes it swell up, causing problems, especially for brain cells.
  • Too much water can form a substance that our body can’t process.

Bottom Up

  • Fill in the gaps as you watch the video again.

Example: ____ water intoxication is rare. > Severe water intoxication is rare.

  1. What do you think ____ when you hear the word ____? Arsenic? Cyanide?
  2. Because you’re drinking ____ than your ____ can process it.
  3. Doctors ____ this water intoxication and it’s a big problem.
  4. As your ____ swells it builds up pressure in your head. At first, you ____ experience headaches, confusion or ____.
  5. And the problem isn’t ____ to water, for example, the same thing can happen if you ____ too much beer ____ once.
  1. What do you think of when you hear the word poison? Arsenic? Cyanide?
  2. Because you’re drinking faster than your kidneys can process it.
  3. Doctors call this water intoxication and it’s a big problem.
  4. As your brain swells it builds up pressure in your head. At first, you might experience headaches, confusion or drowsiness.
  5. And the problem isn’t unique to water, for example, the same thing can happen if you down too much beer at once.

Post

  • How does this information make you feel?
  • Have you ever felt sick because you drank too much water?
  • How do you feel when you don’t drink enough water?