Mod 1
What are two or more atoms linked together to make a substance with unique properties?
Molecule
What is the process by which certain gases trap energy that is radiated from earth. Without it, Earth
would be too cold for life.
Greenhouse effect
In all regions of the atmosphere, temperature decreases with increasing altitude except for one region where temperature increases. What region is that?
Stratosphere
Olive oil will not dissolve in water. How would its molecules be classified?
non-polar
Olive oil will not dissolve in water. Is it made of non-polar, ionic or polar molecules?
non-polar
In the metric system, this measurement is measured in liters and in English system is measured in gallons, pints, or quarts. What is it?
Volume
If the relative humidity is 100%, how much more water can the air hold?
None, Water cannot evaporate at this point.
Name the 2 most prominent gases and their percentage in the homosphere?
Nitrogen 78% Oxygen 21%
Baking Soda’s chemical formula is NaHCO3. How many atoms make up one molecule of baking soda?
1+1+1+3=6
What gas did the negative terminal of the battery give off while interacting with the epsom salt water?
hydrogen
How many centimeters are in eight meters?
800
Why does sweating cool people off?
Because when sweat evaporates, energy is taken from your skin and you are cooler.
These 3 regions compose which layer of the atmosphere: Troposphere, stratosphere, mesophere?
Homosphere
The sugar in green leafy veggies is glucose. A molecule of glucose has 6 Carbon atoms, 12 hydrogen atoms, 6 oxygen atoms. What is its chemical formula?
C6H12O6
Why did the balloon at the end of the bottle inflate when we took a very cold bottle and submerged it in
hot water?
The hot water had fast moving molecules that filled up the less rigid balloon.
What is concentration?
The quantity of a substance within a certain volume.
Do we exhale more carbon dioxide or oxygen?
Oxygen
In which region of the atmosphere does most of the Earth’s weather take place?
Troposphere
If all atoms pull on a molecule with the same strength, this molecule is known as?
non-polar
If you have a very cold sample of water, how quickly are the molecules moving relative to a sample at
room temperature?
molecules move more slowly as temperature decreases.
How many gallons of coke are in a full 2- liter bottle?
1 gallon=3.78 liters
0.5291
Which gas protects us from ultraviolet rays but is also poisonous for us to breathe?
Ozone
What phenomenon does the Polar Vortex cause near the South Pole?
Ozone hole
Why is water a liquid at room temperature?
hydrogen bonding
After combing some static into a comb and holding it near a stream of water, what part of the water
molecule was attracted to the negative charge on the comb?
hydrogen atoms