Geo (Liam) Flashcards
(22 cards)
What are the four main cardinal points?
North, South, East, West.
What are the intermediate directions?
Northeast (NE), Southeast (SE), Southwest (SW), Northwest (NW).
What does a map grid help you do?
It helps to locate places on a map using coordinates.
What does the scale on a map show?
The relationship between distance on the map and distance in real life.
What is a map key or legend?
A guide that explains the symbols and colours used on a map.
What is a compass rose?
A symbol on a map that shows directions (N, S, E, W).
Convert 1 cm : 100 000 to a word scale.
1 cm represents 1 km.
What is a line scale?
A visual scale that shows the distance on a map using a line marked in units.
How do you measure direct distance?
Using a ruler to measure a straight line between two points.
How do you measure indirect distance?
By following the actual path (like a road) with a piece of string or divider.
How do you calculate real distance using a scale?
Multiply the map distance by the scale (e.g., 2 cm × 50 000 = 100 000 cm or 1 km).
Name the important lines of latitude.
Equator, Tropic of Cancer, Tropic of Capricorn, Arctic Circle, Antarctic Circle.
What does latitude measure?
The distance north or south of the equator.
What does longitude measure?
The distance east or west of the Prime Meridian.
What is the coordinate format for location?
Degrees of latitude (°N or °S) and longitude (°E or °W), e.g., 30°S, 25°E.
What are the four layers of the Earth?
Crust, Mantle, Outer Core, Inner Core.
What causes volcanoes to erupt?
Magma from the mantle rises through cracks in the Earth’s crust.
What is lava?
Magma that reaches the Earth’s surface.
What causes an earthquake?
Sudden movement of tectonic plates.
What is the point on the Earth’s surface directly above the earthquake’s origin called?
The epicenter.
What is a flood?
When water overflows onto land that is usually dry.
Name one cause of floods.
Heavy rainfall, overflowing rivers, or broken dams.
