The Basics
When salt is dissolved in water it breaks down into 2 different substances. Is salt composed of atoms or molecules?
Molecules
An instrument used to measure atmospheric pressure
Barometer
Vinegar's active ingredient is acetic acid, C2H4O2. How many atoms are present in a molecule of acetic acid?
8 atoms
Many scientists think that at one time, all the continents might have fit together to form a supercontinent. What is the name of this supercontinent?
Pangaea
The point at which the earth is farthest from the sun
Aphelion
Mass
The number of molecules (or atoms) of a substance in a mixture for every 1 million molecules (or atoms) in that mixture
Parts per million
Where is the residence time longer: in the ocean or in a fast-moving stream?
In the ocean
What have scientists observed in order to learn about earth's interior?
Seismic waves
Suppose you were to observe a long, light rain. After the rain is over and the sky is clear, would you expect warmer temperatures or colder temperatures?
Warmer temperatures
Metric unit for weight?
Newton
Narrow bands of high-speed winds that circle the earth, blowing from west to east
Jet streams
The use of electricity to break a molecule down into smaller units
Electrolysis
Vibration of the earth that results either from volcanic activity or rock masses suddenly moving along a fault
Earthquake
Name 5 types of precipitation
Rain, sleet, snow, drizzle, and hail
If a glass contains 0.121 L of milk, what is the volume of the milk in mL?
(1 mL = 0.001 L)
121 mL
The ratio of the mass of water vapor in the air at a given temperature to the maximum mass of water vapor the air could hold at that temperature, expressed as a percentage
Relative humidity
A measure of the mass of dissolved salt in a given mass of water
Salinity
Name four kinds of mountains?
Folded Mountain
Domed Mountain
Volcanic Mountain
Fault-Block Mountain
A current of rising air
Updraft
A rock has a mass of 45.1 kg. What is its mass in slugs? (1 slug = 14.59)
3.09 slugs
Convert 290 ppm into percent
(1% = 10,000 ppm)
0.0290%
The largest source of liquid freshwater is?
Groundwater
A seismologist is studying a region near a fault. She measures 2 earthquakes. One measures 2 on the Richter scale and the next measures 5. How many times more energy does the second earthquake release as compared to the first?
32x32x32= 32,768 times more energy
A substance that does not conduct electricity very well
Insulator