Chapters 6-10 Flashcards
Explain the difference between the magnetic pole and the geographic North Pole. (Use the North Star or Polaris in your explanation)
The geographic North Pole is on the axis of the earth about which the earth rotates and points at the North Star (Polaris). The magnetic pole is located in northern Canada (Hudson Bay).
small tides caused by the full moon and sun
neap
discovered the island of Greenland
Eric the Red
invented the grandfather clock
Christiaan Huygens
the name for land discovered by Leif Eriksson
Vinland
responsible for holding the moon in orbit and holding the solar system together
gravity
gentle breeze
Cat’s Paw
first to provide an explanation for tides
Sir Isaac Newton
measures distance east and west
longitude
The movement of heat by currents within a substance (liquids & gases)
convection
the distance in degrees north and south
latitude
the name of Isaac Newton’s book
Principia
Explain the difference between local time and Greenwich Mean Time (GMT).
Local time is measured by the position of the sun at a particular location. Greenwich Mean Time is the time measured by the position of the sun at Greenwich, England.
large tides caused by the sun and new moon
spring
discovered the principle of the pendulum
Galileo
largest tides in the world (70 feet)
Bay of Fundy
peaceful
Pacific
a hot, dry breeze starting in the Rocky Mountains and moving toward California
Santa Ana
cannot find this position without a clock
longitude
the southernmost passageway around South America
Strait of magellan
an ore that attracts iron
magnetite
What did Sir Isaac newton conclude a falling apple and the moon circling the earth have in common?
The earth’s gravity causes both events
Why does a sea breeze blow from the sea to the shore during the day but reverse itself at night?
As the land warms during the day, the air above it also warms, causing rising convection currents above the land. The cool air above the ocean flows in to replace the rising warm air. At night the land cools below the temperature of the sea. The warmer air above the sea rises (convection current), and the cooler air from the land flows in to replace it. This revers is caused by temperature fluctuations on land but very little temperature fluctuation in sea water.
