Year 9 Science · Unit 4 · Lesson 5

Evidence, Reasoning and Conclusions

Foundation Worksheet

Name
Date
Class

Learning Goals

Warm Up

Label the part

Each sentence below is one part of a conclusion. Write C for claim, E for evidence, or R for reasoning in the box next to it.

Sentence

Warmer water dissolved the sugar faster.

C / E / R

At 20°C the sugar took 90 s, at 40°C it took 55 s, and at 60°C it took 30 s.
The dissolving time fell every time the temperature rose, so the data links higher temperature to faster dissolving.

Your Turn

Fill the gap

Choose the correct word from the word bank to complete each sentence. Two words will not be used.

claim evidence reasoning conclusion data overreaching supported opinion

A strong scientific is built from three connected parts, often called CER. The is a short statement that answers the investigation question. The is the specific data that backs up that statement, the actual measurements rather than a feeling. The is the explanation of how and why those measurements support the statement. The raw measurements collected during the test are called the . When a claim is clearly backed by both the evidence and the reasoning, we say it is . Claiming more than the test actually shows, such as "this is true for everyone", is called .

Show What You Know

1. In your own words, explain the difference between evidence and reasoning in a conclusion.

Recall 2 marks

2. What does it mean to say a conclusion is overreaching? Give one example of an overreaching statement.

Recall 2 marks

Wrap Up

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

HSCScience · Year 9 Science · Unit 4 · Lesson 5 · Foundation Worksheet