MID TERM TEST FIRST TERM PRIMARY 4 BASIC SCIENCE AND TECHNOLOGY
               CLASS: GRADE 4       SUBJECT: BASIC SCIENCE AND TECHNOLOGY       TIME:
OBJECTIVES
- Air Contaminants are also called air pollutants (true/false)
- mining activities brings about ____________ pollution (a) water (b) air (c) land (d) noise
- Land pollution can cause unpleasant smells (true/false)
- What type of pollution does loud speaker produce (a) land (b) air (c) noise (d) water
- These are agents of erosion except ____________ (a) wind (b) water (c) human (d) waves
- Soil tilling means _______________ of soil (a) burning (b) tilling(c) gathering (d) breaking up
- The following can be used to control erosion except (a) concrete mat (b) plastic Fence (c) wooden fibre mat (d) water
- Healthy environment is a _________________ environment (a) dirty (b) unsafe(c) bad (d) cleanÂ
- _______________ environment is unhealthy environment (a) bad quality (b) good (c) unhealthy (d) comfortableÂ
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- Unhealthy environment is likely to cause illness or poor health (true/false)
- Which of the following is not a solid waste (a) nylon (b) broken bottle (c) water used for washing (d) banana peel
- ____________________ is a solid waste (refuse/sewage)
- ____________________ is a liquid waste (refuse/sewage)
- ____________________ means to treat things that have already been used so that they can be used again (a) Incinerating (b) recycling (c) land filling (d) compositing
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THEORY PARTÂ
1a. Define pollution (2 MARKS)
- Mention the 4 types of pollution (4 MARKS)
- What are pollutants (2 MARKS)
- List the forms of pollutant (3 MARK)
- mention 3 sources of water pollutants (3 MARKS)Â
- what is erosion (2 MARKS)
- list 5 causes of erosion (5 MARKS)
- Mention 5 equipment’s needed to maintain good quality environment (5 MARKS)
- Define waste (2 MARKS) b. list the types of waste (2 MARKS)
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