What is seas are smaller and are partly surrounded by land. Oceans are bigger
100
What is the percentage of fresh water on Earth?
What is 3%
100
Can salt water be turned into fresh water?
What is Yes it can happen through desalination
100
What is salinity
What is How much salt is in the water
200
How much of the earth is covered in water
What is 70%
200
name two things that make up sea salt
What is chloride, sulfate,magnesium, calcium and potassium
200
How much of the fresh water is usable fresh water on the earth?
What is 1%
200
What are the two ways to take salt out of salt water, by the process of desalination
What is distillation and reverse osmosis
200
desalination
What is the ability to take salt out of salt water and make fresh water
300
Where are the two places you can find water?
What is surface water like rivers, lakes, streams, and ponds. The second place is underground water
300
What is the most important difference between ocean water and fresh water
What is Ocean water is salty--it has about 3.5 percent dissolved salts. Fresh water has very little salt
300
Of the 3% of fresh water 2% is locked away in
What is Polar ice caps and glaciers
300
Where is desalination most useful
What is areas near oceans that receive very little rainfall
300
what is groundwater?
What is fresh water that runs underneath the ground
400
Almost all the earth's water is
What is saltwater
400
Where does the salt come from?
What is runoff, rainwater that flows over the land without sinking into the soil. As water moves across the land it dissolves salts and other minerals in soil and rock
400
What are the two main sources of fresh water
What is surface water and groundwater.
400
How does distillation work
What is it takes salt water and heats it up until the water vapor rises and is then gathered to make fresh water
400
What is runoff
What is the rainwater that flows over the land without sinking into the soil
500
What do we call water that is found in the air?
What is a form of gas called water vapor
500
Why can't you drink saltwater?
What is It would make you sick to consume salt water.
500
How do you get to groundwater? What do you have to do?
What is drill a hole deep enough and attach a pump to get the water from underground.
500
How does reverse osmosis work
What is salt water is pumped at high pressure through a thin membrane. Holes in the membrane let water molecules pass through but trap dissolved salts.
500
polar ice caps
What is the area of the North and South Poles that holds 2% of the worlds fresh water.