Distribution of Water
How much of our Earth is covered in oceans?
70%
What are the three states of water?
Solid, liquid, gas
All living things need water. True or false?
True
What is the chemical formula for water?
H2O
What is the largest mammal on Earth?
Blue whale
30% of freshwater is present where?
Ground water
_________ holds molecules of a substance together.
Cohesion
Without clean water, this basic human need becomes unsafe.
Drinking water
What two elements make up water?
Hydrogen and oxygen
How many bones are in the adult human body?
206
How much of our freshwater is considered usable by humans?
1%
__________ holds molecules of a different substance together
Adhesion
Lack of precipitation for a long period of time is...
Is oxygen a positive or negative atom?
Negative
What part of the plant conducts photosynthesis?
Leaves
What percentage of the Earth is freshwater?
3%
What is the term for the energy needed to heat a substance by a particular amount?
Specific heat
Water helps regulate _________ in living things and in the atmosphere?
What makes water a polar molecule?
It has a positive charge at one end and negative charge at the other.
Which NFL team has their logo located on only one side of their helmets?
Steelers
What is the biggest ocean in the World?
The Pacific Ocean
Water is named the ________________ because of its ability to dissolve many substances.
Universal solvent
This process moves water from oceans to clouds and back to the ground.
The Water Cycle
Is hydrogen a positive or negative atom?
Positive
What material was first used to cover baseballs?
Cowhide