Nutrition and food technology asks you to do one thing in four settings: read supplied evidence and explain what it shows. The settings are food labels, preservation, processing and food production.
This cluster is part of the SPM Science learning guide. Each lesson has an original worked example and a self-check.
What does this area cover?
The first lesson teaches you to compare foods on an equal basis, such as per 100 g. The second explains why methods like drying, salting and refrigeration slow spoilage. The third compares processing methods using nutrient and shelf-life data, and the fourth discusses the land, water and feed that production uses.
How do the parts connect?
Each lesson moves one step further along the same reasoning chain. You read the evidence, explain the principle behind it, compare two options, and then judge which suits a stated situation.
| Lesson | Skill | Link to the next |
|---|---|---|
| Reading nutritional data | Compare on an equal basis | Gives you numbers to explain |
| Preservation principles | Link method to cause | Shows why methods differ |
| Comparing processing methods | Claim plus evidence | Adds trade-offs |
| Food production and resource use | Judge with assumptions | Uses all earlier skills |
A short orienting example
Biscuit X has 12 g of sugar in a 30 g serving. Biscuit Y has 15 g of sugar in a 45 g serving. A quick glance says Y has more sugar.
Convert both to per 100 g. For X, 12 ÷ 30 × 100 = 40 g. For Y, 15 ÷ 45 × 100 = 33.3 g.
Per 100 g, X is sweeter. So check whether the question asks about a serving or about the food itself.
Who should start where?
If labels and tables slow you down, begin with the first lesson. If you can read data but your explanations are thin, go to the preservation lesson. When you want to test everything together, use the nutrition and food technology practice set.
The graph evidence and fair-comparison lab lets you practise comparing on an equal basis. To work through the cluster with a teacher, see online one-to-one Science tuition.