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GED Science · Drill I.13

Find the trend

Family I: The Scientist’s Toolkit · Map topic 3

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Worked examples

Two examples

Example 1

Yeast cells in a drop of sugar water01020304050607080901001101200246810121416Time (hours)Yeast cells (thousands)Made-up numbers, for practice.
Which best describes the trend in the number of yeast cells?
  1. A trend is the general direction of the numbers. Follow the line from left to right.
  2. From 0 to about 8 hours, the line climbs steeply: the number of yeast cells rises fast.
  3. After about 10 hours the line is nearly flat: the number hardly changes. It has leveled off.
  4. “It goes up the whole time” is close, but it misses the end, and the end is what the question tests.

Answer: It goes up, then levels off.

Example 2

Temperature of a cup of hot water as it cools01020304050607080901000510152025303540Time (minutes)Temperature (°C)Made-up numbers, for practice.
Between which two times did the temperature change the most: 0 to 5 minutes, 15 to 20 minutes, or 35 to 40 minutes?
  1. The steepest part of the line is where the change is biggest.
  2. From 0 to 5 minutes the temperature falls from 90 to 70: a change of 20 degrees.
  3. From 15 to 20 minutes it falls from 46 to 40: 6 degrees. From 35 to 40 it falls from 28 to 26: 2 degrees.
  4. The water cools fastest at the start, when it is hottest.

Answer: Between 0 and 5 minutes

Where this is taught: Science Practices, part 4: Tables and graphs · Look Again Quiz 3: Tables and Graphs

In your Kaplan book: Unit 4, Chapter 1, Lesson 1: Comprehend Scientific Presentations · Map of the Terrain, topic 3: Tables and graphs

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.

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