Science
This word describes the measure of salt that is dissolved in a body of water.
What is salinity?
Adding fresh water to sea water causes a _________ in salinity.
What is a decrease?
True or false? The salinity of a body of water determines the types of organisms that live there.
What is true?
These are the two products that result from water being desalinated.
What are fresh water and salt?
The four nations that have launched spacecraft to land on the moon are the USA, Russia, China, and ____________.
What is Israel?
This word describes the amount of matter in a given volume, or how densely packed the atoms in an object are.
What is density?
Desalination is the process by which saline water is turned into ________ water.
What is fresh?
If there is more fresh water added to the ocean, then salinity will __________.
What is decrease, drop or go down?
PPT stands for this.
What are parts per thousand or parts per trillion?
Plastic that floats on the surface of the ocean has a lower _________ than the ocean water.
What is density?
An object that has less matter in a given volume has a _________ density than a heavier object of the same size.
What is lower?
PPM stands for this.
What is parts per million?
This is left behind when ocean water freezes.
What is salt?
Salt water is ________ dense than fresh water.
What is more?
Vegetable oil is _________ than water.
Liquids with different densities will do this, similar to the oil and water in our lava lamps.
What is create layers, or separate?
What is ocean water?
When ocean water evaporates, salinity will ______.
What is increase, raise or go up?
This word describes how an object floats in water.
What is buoyancy?
What is a salinometer?
This process by which a liquid turns into vapor causes salinity in the ocean to increase.
What is evaporation?
This is the average percentage of salt in the ocean.
What is 3.5%?
This natural process that happens on land when water washes away parts of rocks and soil can affect ocean salinity.
What is erosion or weathering?
In a water molecule, the oxygen atom has a _______ charge.
What is negative?
When a solute is dissolved in a solvent, a __________ is the result.
What is a solution?