HOTS Science Primary 3 Diversity

Alexa wants to build a prototype for a reusable grocery bag. It must be able to hold 5 kg of weight without tearing and be easily folded into a pocket. Which property is MOST important for the bag material?

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

Worked Solution

Step 1: Analyze the requirements: holding 5kg (Strength) and folding into a pocket (Flexibility). Step [2-9]: Evaluate the properties. Hardness, transparency, and buoyancy are irrelevant to these functions. Step [2-9]: Therefore, both flexibility and strength are the critical properties.

Correct answer: Flexibility and Strength

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