Year 8 Science · Unit 4 · Lesson 4

Constructing Data Tables

Foundation Worksheet

Name

Date

Class

Learning Goals

Identify the essential features of a well-designed data table.
Recognise where units, titles, and trial columns belong.
Distinguish between good practice, required features, and errors in table design.

Warm Up

Fill the gap

Choose the correct word from the word bank to complete each sentence about features of a good data table.

independent dependent units average title trial anomalous colour-coded raw

Every data table must have a descriptive that tells the reader what the investigation was about. The variable is placed in the first (leftmost) column because it is what the scientist changed. All column headings must include in brackets — for example, Temperature (°C) — so that the numbers in the table have meaning. To improve reliability, each condition is tested more than once. Each repeat is recorded in a separate column (e.g. Trial 1, Trial 2, Trial 3), and then an is calculated from those repeated measurements. If one result looks very different from the others, it is called an result. It should be noted but not deleted, because removing it without explanation is dishonest. The directly measured values recorded during the experiment are called data.

Your Turn

Sort it!

Write each item from the pool into the correct category box. Decide whether each feature is something a table must have, is good practice, or is a common error to avoid.

Title describing the investigation IV in the first column Units in column headings Trial 1, Trial 2, Trial 3 columns + Average column Colour-coded rows Neat, ruled borders Units written inside each data cell (e.g. "45°C") Anomalous result crossed out silently Only showing averages — raw trials not recorded DV columns placed to the right of the IV

Must Have

Good Practice

Error to Avoid

Show What You Know

1. Where should units be written in a data table, and why is this rule important?

Recall 2 marks

2. A student gets three reaction time readings: 4.1 s, 4.3 s, and 7.9 s. They delete the 7.9 s result because it "looks wrong." Explain why this is a problem.

Recall 2 marks

Wrap Up

In one sentence, what was the main idea of this lesson?