Presentation on theme: "Geography A Review of Essential Vocabulary Grade 3."— Presentation transcript:
Geography A Review of Essential Vocabulary Grade 3
Standards of Learning 3.5 The student will develop map skills by Positioning and labeling the seven continents and four oceans to create a world map; Positioning and labeling the seven continents and four oceans to create a world map; Using the equator and prime meridian to identify the four hemispheres; Using the equator and prime meridian to identify the four hemispheres; Locating specific places on a simple letter- number grid system Locating specific places on a simple letter- number grid system
Our Globe Our Earth is made up of seven continents and four oceans. The continents include North America, South America, Europe, Asia, Africa, Australia, and Antarctica. The oceans include the Arctic, the Atlantic, the Indian, and the Pacific Ocean.
Hemispheres Our Earth is divided into four hemispheres. A hemisphere is half of a globe. Two imaginary lines are used to create these hemisphere, the equator and prime meridian.
Equator The equator is a line around the middle of the earth that divides the globe into northern and southern hemisphere.
Prime Meridian The prime meridian is a line around the middle of the earth that divides the globe into the eastern and western hemisphere.
Grid Systems These two imaginary lines help us to create a grid system on the surface of the globe. This grid system helps us identify the exact location of any place on earth.
Using Grid Systems A grid system has lines that are similar to the lines on a sheet of paper. Letters of the alphabet are placed on the left hand edge of the grid and numbers are placed on the bottom edge. When you put a number and letter together you call it a coordinate. Coordinates tell us the exact locations of things on the surface of the earth.
Working with Grid Systems Weather forecasters use this grid system to tell us the location of hurricanes and tropical storms. Ship captains and airplane pilots use it to locate where they are and where they are going.