Category #1
Cohesion is the attraction between molecules of the _______ substance
SAME (water molecules sticking to water molecules to build up on the penny)
When molecules of DIFFERENT substances attract to each other (the water molecules sticking to the penny itself)
The high heat capacity of water allows it to what?
Boil at higher temps
Takes longer to change temps
Water dissolves substances like salt & sugar. Therefore, water is acting like a _________
Solvent
What type of bond is holding the elements of water together? (Think about what makes up water)
Hydrogen Bonds
What is a polar molecule?
A molecule with opposite charges on each end (one end is slightly positive, other is slightly negative)
A water molecule is made up of what two elements, and how many of each are in each water molecule?
Hydrogen- 2
Oxygen- 1
What is surface tension?
How can fish still survive in freezing temperatures when their is a layer of ice on the water?
Ice acts as an insulator and can help regulate temps below the surface- they move deeper in the water
Why is it important as a human, that water resists temperature change?
The human body can help regulate temps