Boundaries
Boundary where plates move toward each other
convergent boundary
The solid center of earth *two words
inner core
What plate boundary causes sea floor spreading
divergent boundary
What causes the magnetic field
iron and nickel
What is ms. B's major in?
Biology
Boundary where plates divide or separate
Divergent boundary
What earth layer do we live on?
where in the ocean does sea floor spreading occur
mid ocean ridge
What does the magnetic field protect us from
solar radiation
What is ms. B's favorite color
aqua
Boundary where plates slide against each other
transform boundary
what term encompasses the crust and upper portion of the mantle?
lithosphere
What balances out the area gained by sea floor spreading
subduction
what would happen if we had no magnetic field and why?
No shield from the sun, there would be no life on earth
What is ms. B's favorite TV show
Spongebob
What is formed at divergent boundaries?
Trenches, canyons, and underwater volcanos
Where do convection currents occur?
the mantle
Why is there new crust at sea floor spreading?
New crust from magma released at ocean ridges from divergent boundaries during sea floor spreading
True or false, the magnetic field occasionally flips.
True
What is Ms. B's favorite sport
volleyball
What boundary type causes subduction?
Convergent boundaries
What two elements are in the liquid outer core that creates the magnetic field?
iron and nickle
What causes magnetic stripes
change in polarity during a sea floor spreading event makes "stripes" with new crust
This planet is believed to once have a magnetic field
Mars
What is ms. B's cat named?
Gary