Unit 1: Earth & Science Systems Flashcards
What are the 5 spheres of our Earth?
- cryosphere
- geosphere
- hydrosphere
- atmosphere
- biosphere
What geological feature of Earth is important part of how the Earth functions?
Volcanoes
Where does all matter we use come from?
Our Earth
Finish this sentence: Humans can affect the Earth…
and the Earth can affect humans.
What are four events that can change Earth?
tsunamis
asteroids
life
volcanoes
Where is most Earth Science investigations carried out?
In the field
Who estimated the Earth to be 6,000 years old based on the Bible?
James Ussher
Who proposed that what happens on Earth now can be used to explain what happened to Earth in the past?
James Hutton
Who discovered that fossils can help determine which layers of rock are older or younger than layers?
William Smith & Georges Cuvier
Who used physics to calculate how long it would take the Earth to cool?
Lord Kelvin
who discovered the proton which allowed rocks to be dated using radioactive dating techniques?
Ernest Rutherford
What is the predicted age of the Earth?
4.5 Billion Years
What are key features of the geocentric model?
- Explains planetary motion
- Was proposed by Ptolemy
- Says Earth is the center of the solar system
What are the key features of the heliocentric model?
- Puts the sun at the center of the solar system.
- Was proposed by Nicolaus Copernicus
- States that the Earth orbits the sun
What order were these discoveries/theories proposed (earlies to latest)
- Newtons Law
- Heliocentric model
- Geocentric model
- Kepler’s 3 laws of planetary motion
- Geocentric model
- Heliocentric model
- Kepler’s 3 laws of planetary motion
- Newtons Law
