Unit 3
What does EM stand for?
What is: Electromagnetic
Define rotation
What is: the action of rotating around an axis or center
Define density
What is: the amount of mass in a given volume
What determines an elements identity?
What is: Protons
Define penumbra
What is: The larger and less dark part of a shadow
Compare and contrast absolute brightness and apparent brightness
What is: They’re both light coming from a star from far away. Apparent brightness is how bright a star is when we look at it from Earth. Absolute brightness is how bright a star actually is.
Name the phases if the moon in order
What is: New moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent, new moon
The difference between sea breeze and land breeze
What is:
- Sea breeze comes from the sea and land breeze comes from the land
or
- Land breeze is when the sea is hotter and sea breeze is when the land is hotter
The atomic symbol for silver
What is: Ag
Define potential energy
What is: Stored energy
Name three types of electromagnetic waves that have wavelengths longer than that of visible light.
What is: Radio waves, microwaves, infrared rays
How many days does the moon take to revolve/rotate
What is: 27.3 days
Describe convection
What is: Hot air rising, cool air falling
What causes an element to be a noble gas?
What is: They are the most stable due to having the maximum number of valence electrons their outer shell can hold. They rarely react with other elements since they are already stable.
The three "stages" of a meteor
What is: Meteoroid, meteor, meteorite
_______ ______ --> Gravity vs. ________
What is: Nuclear fusion, pressure
The four different types of eclipses involving the sun
What is: Partial eclipse, total eclipse, annular eclipse, hybrid eclipse
Name three gases in the atmosphere
What is: Nitrogen, oxygen, argon, carbon dioxide, neon, helium, methane, krypton, dinitrogen oxide, hydrogen, xenon, and ozone.
How do you figure out how many neutrons are in an element?
What is:
Subtract the atomic number by the atomic weight
The second largest planet in our solar system
What is: Saturn
How long is one light year in km?
What is: 9.5 trillion km
Earth is tilted at this angle
What is: 23.5 degrees
Name one of the fossils found that helped prove the existence of Pangaea
What is: Lystrosaurus, cynognathus, mesosaurus, glossopteris, european flora
How many elements have been confirmed to exist?
What is: 118
How does metamorphic rock become sediment rock?
What is: Erosion