Studied by 262 peopleTunguska, Chixulub, and Chelyabinsk
three impact events we talked about in class
Observation
Using your 5 sense to to gather information about something
Inference
Making a assumption on something based on knowledge
Oceans, forests, sediment, etc.
What can cover up the craters on Earth?
It has no atmosphere
Why can’t the moon burn through asteroids?
Erosion
What gets rid of craters on Earth?
Volcanos
What landforms could have caused the dinosaurs to go extinct?
Mammal competition
How could other lifeforms cause the dinosaurs to go extinct?
Eggs took too long to hatch
How could reproduction impact the dinosaur extinction?
Climate Change
What environmental changes could’ve impacted the dinosaur extinction?
66 mya
When did the KT extinction impact occur?
meteor impact
What is the leading theory as to what caused the KT extinction?
Gas
What are jovian planets made of?
Beyond the asteroid belt
Where are jovian planets located?
Rock
What are terrestrial planets made of?
Closer to the sun
Where are terrestrial planets located?
Distance from Earth to Sun
How large is an AU?
Red
What colour is the light of objects moving away from us?
Blue
What colour is the light of objects moving towards us?
Time and space
Light is stretched over __________
Cecilia Payne-Gaposchkin
Who discovered the amount of hydrogen and helium in space?
74.5%
What percentage of hydrogen is there in the universe?
24%
What percentage of helium is there in the universe?
Hydrogen and Helium
Which elements were created moments after the Big Bang (hint: easiest elements to make)
expanding
Everything in the universe is showing up as redshifted, meaning the universe is _________
Doppler effect
What is this phenomenon called: when you hear a car’s horn, it will sound different coming toward you (sound is compressed) and different when moving away from you (sound is stretched).
Edwin Hubble
Who discovered a formula that showed which way galaxies are moving?
Penzias and Wilson
Who discovered Cosmic Background Radiation?
Leftover energy from the Big Bang
What is Cosmic Background Radiation?
13.82 billion years old
How old is the universe?
singularity
An infinitely hot and dense point in space that doesn’t take up any space at all is a ____________
expansion
The universe was not an explosion, but a(n) __________
Big Bang
Time, space, energy, and matter were created as soon as the __________ occurred
Matter clumped together
What happened as the universe began cooling and particles started to form atoms?
end of a star’s life
Black Holes, White Dwarf Stars, and Neutron Stars are all things that stars can become at the ____________
Star-forming nebula
What are both sun-like stars and massive stars formed in?
protostar
The name for an early/very young star
Massive star
Larger type of star
Sun-like star
Smaller type of star
red supergiant
Massive stars turn into _______
red giant
Sun-like stars turn into _______
Mass x width x velocity
Conservation of Angular Momentum formula
Fermi Paradox
Where all signs point to aliens being real but we have no evidence of them ever existing
2.537 million ly
How far away are we from the Andromeda Galaxy?
4.2 ly
How far away are we from Proxima Centauri?
Proxima Centauri
What is the closest star to us?
spiral galaxy
What type of galaxy is the Milky Way?
100,000 ly by 10,000 ly
What are the dimensions of our Milky Way?
1 AU
149,597,871 KM is the same length as __________
Planets
They need to be round.
They have to orbit the sun.
They have to clear their orbit
What are they?
Mercury, Mars, Earth, and Venus
Name the terrestrial planets
Jupiter, Saturn, Uranus, and Neptune
Name the jovian planets
Kuiper belt
The two rocky belts in our solar system are the asteroid belt between Mars and Jupiter, and the ___________
Iridium
Element that is rare on Earth but common in asteroids (hint: Walter Alverez)
Meteor
Something that’s entered Earth’s atmosphere
Meteoroid
Something traveling through space
Meteorite
The part of the meteor that survives Earth’s atmosphere and hits the Earth
Chixulub
What was the name of the impact that killed the dinosaurs?
Tunguska
in Siberia, only witnesses were yak herders
Chelyabinsk
the meteor that exploded in the city in Russia
Reasoning
What explains the evidence
Evidence
information that was found during an experiment
Note 
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