Science at key stage 3 (Year 9)

Unit 9B: Fit and healthy
Section 6: b. Why is diet important?

Objectives

Children should learn:

to make notes during a demonstration and to use them in another task
to estimate how precise measurements need to be
to identify trends in quantitative data

Activities		Outcomes
		Children:
Demonstrate how to measure vitamin C content using DCPIP, encouraging pupils to make notes. Ask them to compare the vitamin C content of a selection of fruit juices and squash, eg fresh fruit, carton juice, carton opened for several days, squash, using DCPIP, and to write a report on their findings.		learn how to make very precise measurements recognise that vitamin C content declines with storage and processing

Points to note

Extension: this could be extended into a full investigation of the effects of storage on the vitamin content of juice.

Sections in this unit

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This unit is divided into sections. Each section contains a sequence of activities with related objectives and outcomes. You can view this unit by moving through the sections or print/download the whole unit.


	1. a. What do we mean by fit?
	2. b. What do we mean by fit?
	3. What helps the respiratory system to function?
	4. What is the effect of smoking on the lungs and other body systems?
	5. a. Why is diet important?
	6. b. Why is diet important?
	7. How does alcohol affect the body?
	8. a. What else can we do to maintain fitness?
	9. b. What else can we do to maintain fitness?
	10. a. What effects do drugs have?
	11. b. What effects do drugs have?
	12. Are we healthier than our great-grandparents were?
	13. Reviewing work

Science at key stage 3 (Year 9)

Objectives

Activities

Outcomes

Points to note

Sections in this unit