Integrated Science Questions and Answers - Grade 7 Mid Term 2 Exams 2023 Set 1

QUESTIONS

1. Wanyama wanted to know the quantity of matter in a cubic piece of wood. Which basic quantity was he supposed to use?
2.  A Grade 7 learner was told to calculate the area of a square whose side was 14 cm. Which SI unit would she use in her answer?
3. Below is a common laboratory equipment
   
   Identify it
4. A group of Grade 7 learners were mixing some chemicals in their school laboratory. How best were they to protect their hands from hazards?
5. Which derived quantity can we use the S.I unit g/cm' to measure?
6. Study the chart below
   
   Which substance was wrongly classified?
7. Kendy accidentally mixed paraffin in a mixture of water and milk. How many layers were formed in the container?
   
   Name two mixtures that can be separated by filtering.
8. .....................................................
9. .....................................................
10. Between pure water and muddy water, which one boils at 100°C?
11. Which property of light helps a motorist to use the side mirror?
12. Below is an experiment carried out by some learners.
    
    What were they investigating?
    
    Write three ways in which water can be re-used.
13. .....................................................
14. .....................................................
15. .....................................................

MARKING SCHEME

1. kg or g
2. cm²
3. Buret
4. Using gloves
5. Density
6. Carbon
7. 2
8. Liquid tea and tea leaves particles
9. sand and water
10. pure water
11. reflection
12. use of oxygen in combustion
13. using the water used for rinsing clothes for mopping
14. watering flowers using water used to wash vegetables
15. using the water used for rinsing to sprinkle on earthen floors.