Mapping Earth s Surface Chapter 2 Section 3 Day 1
Objective I will understand maps can be used to find locations on Earth and to represent information about features on Earth s Surface I will understand most maps are made from data collected by a process called remote sensing
Bellringer (left side) Draw a map from home to school. Clearly label all landmarks and include information that might be helpful to someone using the map.
Key Terms Map Equator Latitude Longitude Prime meridian Remote sensing
Mapping Earth s Surface The way which people have seen the world has been reflected in their maps. A map is a representation of the features of a physical body such as Earth.
Finding Directions on Earth The Earth s shape is not a true sphere but it s best represented by a sphere A sphere has no top, bottom, or sides to use a reference points Earth s axis (north and south poles) of rotation can be used to establish reference points
Using a Compass Earth s core generates on a magnetic field that causes earth to act like a giant magnet. A compass is a tool that uses the Earth s natural magnetism to show direction. A compass needle point to the magnetic north pole therefore, a compass will show you which direction is north.
Finding Locations on Earth How would you find the location of something such as a city center or a the tip of an island? These places can be given as address by using longitude and latitude.
Latitude The equator is a circle halfway between the North and the South Poles that divides Earth into the Northern and Southern Hemispheres. Latitude is the distance north or south from the equator. The equator represents 0 degress latitude North Pole = 90 degrees north South Pole = 90 degree south
Longitude Lines of longitude or meridians are imaginary lines that connect both poles. Longitude is the distance east and west in degrees. Prime meridian is the line that represents 0 degrees longitude. runs across the equator The prime meridian travels through Greenwich
Mapping Earth s Surface Chapter 2 Section 3 Day 2
Objective I will understand maps can be used to find locations on Earth and to represent information about features on Earth s Surface I will understand most maps are made from data collected by a process called remote sensing
Key Terms Map Equator Latitude Longitude Prime meridian Remote sensing
Information Shown on Maps Provide information through symbols Maps typically include title indicator of directions a legend a date Let s look at the map on p. 58
Google Maps https://www.youtube.com/watch?v=qyxtvj- Mm9k
Modern Map Making Remote sensing is a way to gather information about an object without directly touching or seeing the object Most maps are made from photographs taken by mapping camera All objects on earth's surface emit electromagnetic radiation (like X rays or heat).
Remote Sensing Passive For Passive Remote Sensing, sensors record the amount of different kinds of electromagnetic radiation to help create maps Data gathered by satellites Active Produces it s own electromagnetic radiation and measures the strength of the return signal Data gathered by radar and microwaves
Global Positioning System (GPS) Can help you find where you are on the Earth. Was invented in 1970 by the US Department of Defense for military use GPS is a system of orbiting satellites that send radio signals to receivers on Earth. These receivers calculate the longitude and latitude and elevation.
Geographic Information System- GIS Visually presents information about an area. Organizes information in overlapping layers.
Things To Do Homework Section Review p. 63 # 1-4 Write all questions Answer all questions in full and complete sentences Key Terms Quiz Thursday