Space Systems
When is the Earth closer to the Sun?
In the winter
Describe ocean crust
thin and made of basalt
Water expands when it....
Freezes
When is the hottest part of the day?
After 1:00 PM
What dates recent living objects?
Carbon 14
How much daylight does the Equator have?
12 hours
Describe the Continental crust
thick and made of granite
4 degrees Celcius (when it is a liquid)
As the temperature increases, air pressure __________.
Decreases
What dates old rocks?
Uranium 238
The sun appears to rise in the _________ and set in the ___________.
East, West
What waves are faster? P or S
P
What is the number 1 agent of erosion in NYS?
Streams
As humidity (atmospheric moisture) increases.... what decreases?
atmospheric pressure
What can't be changed of a radioactive element?
half life
longer
What are the three types of plate boundaries?
Convergent, divergent, transform
Gravity
Air pressure ___________ with altitude.
decreases or increases
decreases
What is Dynamic Equilibrium?
Balance
Why does the moon have phases?
Because it is rotating around the Earth
How are mountains formed?
Movement and collision of tectonic plates or by volcanic activity
What type of climate does chemical weathering require?
Warm, humid climates
Wind blows from ________ to __________ pressure.
high to low
What are index fossils used for?
Time markers (widely used, lived a short time)