Properties of Water
Water has a _________________________. This means that it takes a long time to for water to heat up
High Specific Heat
What atoms make up a molecule of water.
2 hydrogen atoms and 1 oxygen atom
What inside of seawater allows for the conduction of electricity?
Salt!
True/False: Water is the only natural substance that can exist in all 3 states of matter at normal temperatures for Earth.
Condensed water vapor that falls back to the Earth in the form of rain, sleet, snow or hail.
Water covers almost ____________ of Earth's surface
71%
What type of bond is formed from the attraction between the positive end of one water molecule and the negative end of another water molecule?
a hydrogen bond
What two things can affect the DENSITY of water?
Salt and temperature
Water sticking to other surfaces/substances is known as
Adhesion
The process of liquid water changing into water vapor and moving into the air due to an increase in temperature/pressure is
evaporation
What percent on water on Earth is saltwater?
97%
Why are water molecules attracted to each other?
because of polar bonding
More dense! More salt and colder temps!
Water molecules are attracted and stick to other water molecules. This causes water to clump together in drops. What property of water is this?
cohesion
In what step in the water cycle does water sink into the ground and become groundwater
Percolation
Frozen water is MORE/LESS dense? (Choose one)
Less! Ice floats!
Draw a molecule of water! Label the atoms and charges on both ends
(Insert Hidden Mickey Drawing Here)
Because of the salt, seawater tends to freeze at ____________ temperatures, compared to freshwater
(Higher or Lower)
Lower
What property (or properties) of water allow some light organisms to walk on the top of water without falling in?
Surface Tension, cohesion
Water vapor is given off by the leaves of plants. This is called
transpiration.
Capillary action is made possible due to which two properties of water?
1) The hydrogen end of water has a______________ charge.
2) The oxygen end of a water molecule has a______________charge.
1) slight positive charge
2) slight negative charge
Where does the salt and minerals in seawater come from?
From runoff, lakes rivers and streams, and under the ocean floor (Hydrothermal vents)
Ice floats because
solid water (ice) is less dense than liquid water
Precipitation that reaches Earth's surface, flows over land, and reaches lakes rivers and oceans is called
surface run-off