Question 3: a) i. What is a balanced diet? ii. State three classes of food. b)Explain three importance of personal hygiene in food preparation. c)Outline three methods of cooking and give one example each. Question 4: a) i. What are resistant materials? ii. State three examples. b)Explain three properties of resistant materials. c)List two tools each used in: Woodwork Metalwork Building Question 5: a) i. What is the design process? ii. State four stages of the design process. b)Explain the meaning of: Testing Evaluation c)You are asked to design a product to reduce plastic waste in your school: i. State the problem ii. Suggest a solution (artifact) iii. State two materials you will use Question 6: a) i. What is waste management? ii. State three types of waste. b)Explain three effects of poor waste disposal. c)Suggest three ways of managing waste in your community.
This business/management problem is solved step by step below, with detailed explanations to help you understand the method and arrive at the correct answer.
ScanSolve AI Answer
Here are the answers to Question 3 and Question 4:
Question 3:
a) i. A balanced diet is a diet that contains all the essential nutrients—carbohydrates, proteins, fats, vitamins, minerals, and water—in the correct proportions to meet the body's needs for growth, energy, and health.
a) ii. Three classes of food are:
1. Carbohydrates (e.g., rice, bread)
2. Proteins (e.g., meat, beans)
3. Vitamins and Minerals (e.g., fruits, vegetables)
b) Three importance of personal hygiene in food preparation are:
1. Prevents food contamination: Good hygiene, like washing hands, stops harmful bacteria and viruses from transferring from the body to food.
2. Reduces the risk of foodborne illnesses: By minimizing contamination, it significantly lowers the chances of people getting sick from eating contaminated food.
3. Maintains food quality and freshness: Hygienic practices help prevent spoilage and keep food safe and appealing for consumption.
c) Three methods of cooking and one example each:
1. Boiling: Cooking food in hot, bubbling water. Example: Boiling yam.
2. Frying: Cooking food in hot oil or fat. Example: Frying plantain.
3. Baking: Cooking food using dry heat, typically in an oven. Example: Baking bread.
Question 4:
a) i. Resistant materials are materials that can withstand external forces and are not easily deformed or broken. They are chosen for their strength, durability, and ability to hold their shape.
a) ii. Three examples of resistant materials are:
1. Wood
2. Metal
3. Plastic
b) Three properties of resistant materials are:
1. Strength: The ability of a material to withstand external forces without breaking or deforming. For example, steel is very strong and can support heavy loads.
2. Hardness: The resistance of a material to scratching, indentation, or abrasion. Diamonds are known for their extreme hardness.
3. Durability: The ability of a material to last a long time without significant wear or deterioration, even under harsh conditions. Concrete is a durable material used in construction.
c) Two tools each used in:
Woodwork*:
1. Saw
2. Chisel
Metalwork*:
1. Hacksaw
2. File
Building*:
1. Trowel
2. Spirit level
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