Year 9 Science · Unit 4 · Lesson 2

Identifying Scientifically Testable Claims

Foundation Worksheet

Name
Date
Class

Learning Goals

Warm Up

Sort it!

Write each claim from the pool into the correct category box. Decide whether each one could be tested with a fair investigation, or could never be tested.

This fertiliser increases tomato yield This crystal carries healing energy This sunscreen blocks more UV than the leading brand Blue is the most beautiful colour This battery lasts longer than a standard battery in a torch This bracelet brings you good luck Adding sugar to water makes cut flowers last longer Everything happens for a reason This soap removes more grease than plain water This charm works, but only if you truly believe

Scientifically Testable

Not Testable

Your Turn

Fill the gap

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

claim testable measure falsifiable hypothesis investigation evidence opinion series

A is a statement someone presents as true, such as "this fertiliser increases crop yield". A claim is scientifically when you can design an investigation that could support it or show it is wrong. The claim must link to something you can observe and . A scientific claim must also be , which means an investigation has to be able to prove it false. To test a claim, you first turn it into a , a clear if-then prediction. You then design an to collect the data needed. The data you collect to decide whether the claim is true is called .

Show What You Know

1. Give one example of a claim that is scientifically testable and one that is not. Explain what makes each one what it is.

Recall 2 marks

2. Why must a scientific claim be falsifiable, able to be shown false? Give a specific reason.

Recall 2 marks

Wrap Up

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

HSCScience · Year 9 Science · Unit 4 · Lesson 2 · Foundation Worksheet