Worked examples
Two examples
Example 1
A diagram drawn for this example.
According to the key, what is layer B made of? And which are older, the shells in layer B or the coral in layer D?- Read the key before the picture. Each pattern stands for one kind of rock, and a pattern means whatever the key says it means.
- Layer B has the dotted pattern. In the key, dots stand for sandstone.
- Now the age. These layers have not been tilted or turned over, so each layer was laid down on top of the one below it. Lower is older.
- Layer D lies below layer B, so layer D, and the coral in it, is older than the shells in layer B.
Answer: Sandstone; the coral is older.
Example 2
A diagram drawn for this example.
Using the scale bar, about how far is it from Site 1 to Site 2?- A scale bar tells you how far a distance on the map is on the ground. Here, the length of the bar stands for 100 meters.
- Measure the gap from Site 1 to Site 2 with the bar: lay the bar’s length along it again and again. It fits 4 times.
- 4 lengths of 100 meters each: 4 × 100 = 400 meters.
Answer: About 400 meters
Where this is taught: Look Again Quiz 4: Diagrams and Models
In your Kaplan book: Unit 4, Chapter 1, Lesson 1: Comprehend Scientific Presentations · Map of the Terrain, topic 4: Diagrams and models
The drill
Ten questions
How many:
Read what is in the box first, if there is one. Then tap your answer; a few questions ask you to choose words from a drop-down instead, the way the GED test does. Press Check my answers at the bottom.Read what is in the box first, if there is one. Circle your answer; where there are brackets, circle the choice that fits. The answer key, with the reasoning, is on the last page.