Federal Emergency Management Agency, Public Domain.

Size: px

Start display at page:

Download "Federal Emergency Management Agency, Public Domain."

Gordon Harrington
5 years ago
Views:

1 Federal Emergency Management Agency, Public Domain.

2 LIMITED LICENSE TO MODIFY. These PowerPoint slides may be modified only by teachers currently teaching the Science and Global Issues SEPUP course to customize the unit to match their students learning levels or to insert additional teaching aides. Modified slides may be used only by the modifying teacher in his or her classroom, or shared with other teachers of Science and Global Issues within the teacher s school district, with these same restrictions. Modified slides may not be taken out of the classroom or distributed to any non-student person or organization. Except for use with students in the classroom, modified slides may not be published in printed or electronic form, including posting on the Internet. Only text may be modified: photographs and illustrations on the slides may not be modified in any way except to change their size. DISCLAIMER OF WARRANTY. THE REGENTS OF THE UNIVERSITY OF CALIFORNIA ( University ) MAKE NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. University will not be liable for any costs, damages, fees or other liability, nor for any direct, indirect, special, incidental or consequential damages (including lost profits) with respect to any claims by the purchaser or user of Science and Global Issues or any third party on account of or arising from the use or modifications to the slides. Client acknowledges and accepts that University services are provided on an as-is basis.

3 Get Started How might elevation features in an environment change where people decide to build? How can we represent an environment with different heights on a flat surface, such as a map projection?

4 Introduction Read the introduction. A collection of landforms in an area is its typography. A typographical map uses a series of lines to represent the three-dimensional shape of the land surface, using lines to represent specific elevations.

5 United States Geological Survey, Public Domain. Challenge What do the lines on a typographical map show?

6 Procedure Place 20 drops of food coloring in your container of water Place the lid on the box of the landform model, and look down at the landform. Use the marker to draw a dashed line on the lid outlining the edge of the landform. Careful not to smudge your line, remove the lid and fill the box with water up to the first step on the side of the box.

7 Procedure Place the lid on the box, and use the marker to outline where the water reaches the sides of the landforms. Label any lines drawn with a 1. Remove the lid, fill the box to the next step, and outline where the water reaches the sides of the landform again. Label any lines drawn with a 2. Repeat the previous step 3 more times, labeling the lines 3, 4, and 5.

8 Procedure Carefully, add just enough water to cover the top of the landform, and pay close attention to label the highest point with an X on the lid.

9 Follow Up A contour interval is the change between adjacent lines. If each line represents 25 meters, what is the estimated height of the top of the landform? Part of the South Franklin Mountains near El Paso

10 Follow Up Discuss with the people at your table: What does your topographical map show you about the land? What does your topographical map NOT show you about the land?

We can use such contour maps to determine the stability of an area

11 Next Activity In the previous activity, we drew a simple contour map of a landform. We can use such contour maps to determine the stability of an area by looking for areas with little change in typography over time. This is important in determining stable building sites.

12 United States Geological Survey, Public Domain. Challenge What can topographical maps tell you about the stability of a building site?

13 Procedure You will first work with a partner at your table, then you and your partner will work with the other pair of students sharing your table. Each student sheet shows a street map and a topographical map of Boomtown at different times.

14 Procedure In your science notebook, make a table as shown. Next, carefully examine and compare each location.

15 Procedure Observe changes in roads, buildings, waterways, and landforms. Discuss any changes you see with your partner, and record observations in your table. Discuss your ideas with the other pair in your group of four. Review your data tables together, and add any new observations of the three building sites.

16 Follow Up What major changes did you observe between 100 years ago and 20 years ago? And between 20 years ago and today? Look at the maps of the three locations in Boomtown. Which is the most stable? And the least? Explain the supporting evidence. Do the maps indicate any possible problems at any of the three locations?

17 Key Vocabulary Contour Interval Contour Line Key Landform Stability Topography Topographical Map

18 Key Vocabulary Topography is the collection of landforms within an area. Topographical Map uses a series of lines to represent the three-dimensional shape of the land surface. Contour Interval is the change in elevation between adjacent lines.

19 TEKS ADDRESSED Texas Essential Knowledge & Skills (TEKS) Science, Grade 8, Beginning with School Year (a)(4) (D) Earth and space. Students identify the role of natural events in altering Earth systems.... Students will illustrate how Earth features change over time by plate tectonics. They will interpret land and erosional features on topographic maps. (c)(9) Earth and space. The student knows that natural events can impact Earth systems. The student is expected to: (C) interpret topographic maps and satellite views to identify land and erosional features and predict how these features may be reshaped by weather.

20 NGSS ADDRESSED MS-ESS3-3. Apply scientific principles to design a method for monitoring and minimizing a human impact on the environment.

ESSENTIAL QUESTION How can we use the Mars Map and photographs of Mars to learn about the geologic history of the planet?

ESSENTIAL QUESTION How can we use the Mars Map and photographs of Mars to learn about the geologic history of the planet? GRADE LEVEL(S) 4 6 LENGTH 60 minutes MATERIALS Giant Destination Mars Map Mars Mapping Student Sheet Colored Markers (red, green, blue) VOCABULARY Crater Erode Ejecta Channel Sun Angle Sequence ESSENTIAL