Advanced Science Primary 3 Diversity

Ross wants to choose a material to make a helmet visor. He needs to see clearly while protecting his face. Which two properties are most important?

A Hardness and Ability to float
B Transparency and Flexibility
C Transparency and Hardness
D Flexibility and Strength
Show Worked Solution

Worked Solution

Step 1: Visors must allow light to pass through (Transparency) so the user can see. Step [2-9]: They must resist scratches from debris (Hardness) and protect from impact.

Correct answer: Transparency and Hardness

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