Question 1: Describe three different materials that could be used to make a school pencil case. For each material, explain one of its key properties that makes it suitable.

Answer: Examples include: Plastic (lightweight and durable), Fabric (flexible and soft), Metal (strong and sturdy). Each property supports the material's suitability for a pencil case.

Question 2: A student wants to create a lightweight, waterproof backpack. Which material would you recommend and why?

Answer: I would recommend a waterproof synthetic fabric such as nylon because it is lightweight, waterproof, and durable, making it ideal for a backpack.

Question 3: Think about a wooden chair. Describe two properties of the wood used and why they are important for making a chair.

Answer: Properties: Strength (to support weight) and smoothness (for comfort and aesthetics). These properties ensure the chair is durable and comfortable to sit on.

Question 4: Design Brief: You need to make a protective cover for a smartphone. Which material might you choose and why? Include one property that is important.

Answer: A flexible silicone or rubber could be used because it is shock-absorbent, providing protection against impacts.

Question 5: Sketch a simple design for a keyring holder made from a metal sheet. Show how the sheet could be shaped or cut to hold multiple keys.

Answer: A correct sketch would show a flat metal sheet with several semi-circular cut-outs or hooks along one edge, allowing keys to hang securely.

Question 6: Design Brief: You are tasked with creating a lightweight, eco-friendly lunchbox. Which material would you choose and why? Include one key property.

Answer: Bamboo or biodegradable plastics could be used because they are lightweight and environmentally friendly. A key property is being biodegradable or sustainable.

Question 7: Describe a material that is transparent and durable, suitable for making a display case. Mention one property that makes it suitable.

Answer: Acrylic (Perspex) is transparent and durable. Its clarity allows visibility, and it resists shattering.

Question 8: Draw a plan for a small storage box made from cardboard. Include the main features such as the sides, base, and lid.

Answer: A correct plan would show a rectangular base, four sides, and a lid that overlaps slightly to close the box. The drawing should include labels for each part.

Question 9: Explain why metal springs are used in mechanical toys. Mention one property of metal that is important.

Answer: Metal springs are used because they can store and release energy efficiently. An important property is elasticity.

Question 10: Identify a material suitable for making a non-slip handle on a tool. Describe one property that helps prevent slipping.

Answer: Rubber or rubberized coatings are suitable because they have high friction, which helps prevent slipping during use.