Unique Nature of Pure Water
How do bodies of water freeze?
From Top to Bottom
How many states of water are there?
Three
What is cohesion?
The sticking together of particles of the same substance
What is CO2?
The Gas element that releases into the ocean and causes ocean acidification
What is photosynthesis?
Plants remove carbon dioxide from the atmosphere during this process that uses sunlight to make food.
Why does water build up on waxy surfaces?
Because of Cohesion
When water freezes, what happens to the molecules?
They move slowly
What is surface tension?
The measure of the elastic tendency of liquids
What is PH?
What does the carbon cycle move carbon through?
Plants, animals, air and water
What are the small units that matter consists of called?
Atoms
If heat is added to water what phase does the water go into?
Turns into vapor/evaporates
What is adhesion?
the tendency of different substances or molecules to stick to one another
What is the average salinity of the ocean?
3.5%
What are fossil fuels?
When plants and animals die, their carbon can go into the soil or form these over millions of years.
What unique effect happens to water when it freezes solid?
It becomes less dense
What is the only substance that naturally occurs in all 3 states ( solid, liquid, gas) on earth?
Water
What elements does H2O consist of?
2 Hydrogen and one Oxygen Atom
How does climate change affect ocean acidification?
The process of ocean acidification is sped up by climate change
What is decomposition?
This natural process happens when dead plants and animals break down, releasing carbon back into the soil and air.
What property helps stabilize large bodies of water?
Waters high specific heat
Want element holds the most molecules together in small groups?
Hydrogen
What is the attraction of one water molecule to another called?
Hydrogen bonding
What is calcium carbonate?
When ocean water becomes more acidic, tiny plankton at the base of the food chain can struggle to survive because their shells are made of this compound.
What is absorbs (or takes in) carbon dioxide?
The ocean is called a “carbon sink” because it does this with carbon dioxide from the atmosphere.