Science · Paper 1 · 2021
18 questions 🇹🇿 NECTA ✓ MS3-hour timed simulation · auto-graded · counts toward ranking
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Section A
What are the calls made when you need urgent help called?
Match the signs of diseases in List A with the corresponding diseases in List B. Write the letter of the correct answer in the parentheses.
- Stiff joints and bent neck (1 mk)
- Stiff joints and neck bending (1 mk)
- Small rashes on the body (1 mk)
- Small spots appear on the body (1 mk)
- Passing stool like water (loose stool) (1 mk)
- Passing stool like water (1 mk)
- Frequent urination (1 mk)
- Frequent urination (1 mk)
- Making a whistling sound when breathing (1 mk)
- Wheezing sound when breathing (1 mk)
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Section B
Answer items (a) to (e) by writing the steps of scientific investigation found in the box. Analyze data, Interpret results, Formulate a hypothesis, Conduct an experiment, Identify the problem.
- First step (1 mk)
- Second step (1 mk)
- Third step (1 mk)
- Fourth step (1 mk)
- Fifth step (1 mk)
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Read the following passage, then answer items (a) to (e) by writing the correct answer in the blank spaces provided. Wearing dirty clothes causes body odour and sometimes skin diseases. Clean clothes make a person look neat and attractive. To make clothes clean, they must be washed using clean water and soap. After the clothes dry, they should be ironed to kill disease-causing germs. Also ironing clothes makes the wearer look neat. When clothes are clean they can be worn or stored in a clean and dry place, such as a cupboard or wardrobe. Questions: (a) What materials are needed when washing clothes? (i) (ii) (b) What is the effect of wearing dirty clothes? (c) Why do we iron clothes? Give one reason (d) What kills germs during ironing? (e) Why are clean clothes stored in a cupboard or wardrobe?
- What materials are needed when washing clothes? (i) (ii) (2 mk)
- What is the effect of wearing dirty clothes? (1 mk)
- Why do we iron clothes? Give one reason (1 mk)
- What kills germs during ironing? (1 mk)
- Why are clean clothes stored in a cupboard or wardrobe? (1 mk)
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Use the devices shown in the picture to answer items (a) to (e). Write the answer in the space provided. (a) Which device gives an informal measurement? (b) Which device accurately measures the volume of liquids? (c) The length of a desk is measured with which device? (d) Which device is used to measure the weight of an object? (e) Why is a measurement made with a ruler an informal measurement?
- Which device gives an informal measurement? (1 mk)
- Which device accurately measures the volume of liquids? (1 mk)
- The length of a desk is measured with which device? (1 mk)
- Which device is used to measure the weight of an object? (1 mk)
- Why is a measurement made with a ruler an informal measurement? (1 mk)
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