Geography Grade 7 Flashcards
Study key terms (98 cards)
What are the seven continents?
Africa, Asia, Europe, North America, South America, Australia, Antarctica
These continents are fundamental geographical units of the Earth.
List the five major oceans.
Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, Arctic Ocean
Oceans cover a significant portion of the Earth’s surface.
What is a Point Symbol?
Symbols that represent specific, individual locations or features on a map
Examples include hospitals, schools, and police stations.
Give two examples of Point Symbols found on a map.
Hospitals, Police Stations
These symbols help identify important services in a community.
What is a Line Symbol?
Symbols that represent linear features, such as roads or rivers
Examples include major roads and railway lines.
Provide two examples of Line Symbols.
Major Roads, Railway Lines
These symbols are crucial for understanding transportation routes.
Define Area Symbols.
Symbols that represent larger areas with specific characteristics
Examples include parks and residential areas.
Identify two examples of Area Symbols.
Parks, Residential Areas
Area symbols convey information about land use.
What is a scale on a map?
A scale shows the relationship between the distance on the map and the real distance on the ground
It helps measure distances without visiting the locations.
What is a Line Scale?
A straight line divided into equal parts, each representing a certain distance in real life
For example, 1cm = 1km.
What is a Word Scale?
A scale that uses words to explain the scale, such as ‘1cm represents 5km’
This provides a clear understanding of distances represented on the map.
What is the difference between Small-Scale Maps and Large-Scale Maps?
Small-Scale Maps show large areas with less detail; Large-Scale Maps show smaller areas with more detail
Example: A map of South Africa is small-scale; a town map is large-scale.
What is Direct Distance?
A straight line from one place to another (‘as the crow flies’)
This is measured with a ruler.
What is Indirect Distance?
A path that follows roads or curved lines
Measured using a piece of string or paper.
What is the purpose of a Compass Rose?
Shows all directions on a map
It includes cardinal and sub-cardinal points.
Name the four cardinal points.
North, South, East, West
These are the primary directions used for navigation.
What is an Earthquake?
A sudden shaking of the ground caused by movements in the Earth’s crust
It can cause significant damage and is measured using the Richter scale.
What is a Volcano?
A geological formation where magma rises through cracks in the Earth’s crust and erupts
Types include active, dormant, and extinct.
What is the difference between Lava and Magma?
Magma is molten rock inside the Earth; lava is magma that reaches the surface
This distinction is crucial in volcanology.
What causes floods?
Too much rain and rivers overflowing, or blocked drainage
Floods can lead to severe human and environmental impacts.
What is a Disaster Management Plan?
A plan to help communities prepare for and respond to natural disasters
This includes education and early warning systems.
What is a Grid on a map?
A system of horizontal and vertical lines that helps locate places
Grids make navigation easier.
What is an Epicentre?
The point on the Earth’s surface directly above the origin of an earthquake
It is crucial for understanding the impact area of an earthquake.
Fill in the blank: A _______ is a tool that shows directions using a needle that points north.
Magnetic Compass