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Ch 1 Notes. Mr. Russo Beaumont High School. Ch 1 Vocab Matrix. Latitude Longitude Topographic Map Contour Line Contour Interval Hypothesis Theory Core Mantle Crust Atmosphere Geosphere. Objective. - PowerPoint PPT Presentation
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Ch 1 NotesMr. Russo
Beaumont High School
Latitude Longitude Topographic Map Contour Line Contour Interval Hypothesis
Theory Core Mantle Crust Atmosphere Geosphere
Ch 1 Vocab Matrix
We will be able to break down Earth Science into its 4 main parts and describe each part.
Objective
Study of Earth and… Earth’s neighbors in space
What is Earth Science
Geology – Study of Earth (what the Earth is made of)
Geology
If you became a geologist you probably will get paid to travel across the whole world to study the different types of rocks etc.
Average $83,000
In case you were wondering
Oceanography – study the composition and movement of water (oceans, lakes, rivers, anything)
Average salary $70,000
Oceanography
Meteorology – Study of atmosphere and the processes that produce weather and climate
Average salary $74,528
Meteorology
Astronomy - Study of the universe◦ Stars and other planets
Average salary $55,000
Astronomy
Astronomy is not Astrology
We will be able to break down the Earth into its interior and exterior components
Objectives – Ch 1.2 Notes
Hydrosphere – Water portion of the Earth
All bodies of water (Ocean, lake, river, groundwater, etc)◦ 71% of Earth’s Surface◦ 97 % of all water is in
the ocean
Hydrosphere
Atmosphere - Gaseous portion of the planet
The air we breathe and all the gases in the air◦ Protects us from UV
light◦ Produces all forms of
weather
Atmosphere
Geosphere – Layer of Earth under ocean and the atmosphere (All rock and/or ground)
Geosphere
Biosphere - All life on Earth From the fish at the bottom of the ocean to
the birds highest in the sky Including plants
Biosphere
Hydrosphere Atmosphere Geosphere Biosphere
What are the 4 major spheres into which Earth is divided?
We will be able to break down the Earth into its interior and exterior components
Objectives
Core Mantle Crust
What defines the 3 main parts of the Earth
Core – Innermost layer of the Earth Made mostly of Iron and Nickel Approximately 6000°C
Core
Mantle – 2nd layer of Earth between the core and the crust◦ All rock is molten
Mantle
Crust – Thin Rocky outer layer of Earth 2 layers – Lithosphere & Asthenosphere
Crust
If I was doing a study on the Earth’s crust, what would I be studying?
Oceanography Meteorology Astronomy Geology
Question
If I was trying to predict weather patterns, what would I be studying?
Oceanography Meteorology Astronomy Geology
Question
If I was doing a study on an endangered species, what sphere would I be studying?
Hydrosphere Biosphere Atmosphere Geosphere
Question
If I was trying to learn to find new places to find fresh water, what sphere would I be studying?
Hydrosphere Biosphere Atmosphere Geosphere
Question
We will be able to determine where cities are on a map using latitude and longitude coordinates
Objectives – Notes 1.3-1.5 (Pg27)
Latitude and Longitude
What lines on a map are used to indicate location?
Latitude – The distance north or south of the equator, measured in degrees.
LANS
Latitude
Longitude – The distance East or west of the prime meridian, measured in degrees.
LOWE
Longitude
Equator – 0 degrees latitude Prime meridian – 0 degrees longitude
Prime Meridian / Equator
Using your definition, draw a globe with latitude lines.
On White Boards
We will be able to create a 3D map from a 2D topographic map.
We will be able to determine the elevation of certain features on a topographic map using contour lines and contour intervals
Objective: Notes 1.3-1.5 (Pg 27)
Topographic Maps show Earth’s surface in 3 dimensions. They show elevation
Topographic Map
Topographic Maps show elevation. ◦ Elevation means 3 dimensions◦ Most maps only show 2 dimensions.
How do topographic maps differ from other maps?
Contour Line – A line on a topo map that indicates elevation
Every point on a contour line is the same elevation.
Contour Line
If contour lines are CLOSE together, that means the land is very steep.
If contour lines are WIDELY SPACED, the change in elevation is gradual.
Contour Lines Cont’d
Contour Interval – The space in between contour lines.
The contour interval varies based on the map.
Contour Interval
Hypothesis – A possible Explanation (untested)
Theory – Well tested and widely accepted by the scientific community
Explain the difference between a hypothesis and a theory
Theory of Gravity – Why we fall down
Atomic Theory – What we are made of
Theory of relativity – Einstein’s work
Big Bang Theory – How the universe was formed
Examples
Topographic Maps
What is a Topographic Map?
In contrast to most maps, a topographic
map shows the shape of the Earth’s surface by using contour lines.
Contours are imaginary lines that join points of equal elevation above or
below sea level.
Let’s take a walk up a hill!
We’re now at an elevation of 100 meters.
100m
Let’s keep going!
100m
Now we’re at 200m.
100m
200m
Shall we march on?
100m
200m
We’ve made it to 300m!
100m
200m
300m
On to the peak!
100m
200m
300m
We’re on the peak, but what’s our elevation?
100m
200m
300m
Any ideas?
100m
200m
300m
Let’s add contour lines for every 50 meters and see if that helps.
100m
200m
300m
We know that we are above 350m, but less than 400m.
50m
150m
250m
350m
100m
200m
300m
Let’s head down the hill, it’s getting late!
50m
150m
250m
350m
100m
200m
300m
Now what’s our elevation?
50m
150m
250m
350m
If you said somewhere between 200m and 250m you are right!
100m
200m
300m
Let’s try this again!
50m
150m
250m
350m
100m
200m
300m
What’s our elevation now?
50m
150m
250m
350m
If you said 50m or just under, you’re right!
Let’s now look at the same hill, but the way we might see it from an airplane!
Each color change represents a 50 meter increase.
Now, let’s try the same hike! Our elevation is 0 meters.
Now what is our elevation?
If you said more than 150 meters, but less than 200
meters your right!
Let’s go a little higher.
Think you know our elevation now?
More than 300metersBut less than 350meters
If we were standing on the peak, what would be our elevation?More than 350 meters,
less than 400 meters
Let’s head down hill.
Know our elevation?
More than 100 meters, less than 150 meters
Let’s see what you know.
400m 800m
1000m
1200m
A
B
C
D
E
F
600m
Grab a piece of paper and write your answers to the following questions.
Ready?