SCIENCE TECHNOLOGY PAPER 1
MIDYEAR GRADE FOUR
1. Which tooth is used primarily for biting?
A. Incisors
B. canines
C. premolars
D. molars
2. Tooth decay is also known as -------------------.
A. Cavities
B. claque
C. enamel erosion
D. gum disease
3. What is a sticky substance that can cause tooth decay if not removed?
A. Plaque
B. germ
C. saliva
D. enamel
4. Fresh foods should be kept in -----------------.
A. Fridge
B. cooking pot
C. cupboard
D. shops
5. Which one amongst this is NOT a proper way of handling food?
A. Use clean utensils B. cover food
C. eat expired food D. proper storage of food
6. Which practice is most effective in preventing the growth of harmful micro-organisms?
A. Leaving food at room temperature for extended period
C. mixing raw and cooked food
B. using old utensils
D. cooling food promptly after cooking
7. Things that make the air dirty are called -----------.
A. fresheners
B. conditioners
C. pollutants
D. toxins
8. Which of the following statements best defines air pollution?
A. The release of clean air
B. The release of harmful substances into the air.
C. The process of photosynthesis
D. The mixing of water and air
9. ------------- affects how you think, feel and act.
A. Physical health
B. Mental health
C. Diet
D. Exercise
10. Which of the following is NOT an effect of good mental health?
A. improved concentration B. reduced stress C. more conflicts D. better social interaction
11. Which of the following is a benefit of immunization?
A. It increases healthcare costs
B. It prevents the spread of diseases
C. It weakens the immune system
D. It has no effect on public health
12. The DPT vaccine helps protects against ----------------.
A. diphtheria
B. tetanus
C. whooping cough D. all of the above
13. The BCG vaccine is administered to prevent --------------.
A. measles
B. tuberculosis
C. whooping cough
D. tetanus
14. MMR vaccine is used to prevent ----------------.
A. tetanus
B. measles
C. whooping cough
D. diphtheria
15. Which food is a primary source of vitamins and minerals?
A. fruits and vegetables
B. starchy food
C. meat and fish
16. Carbohydrates primarily provide the body with --------------.
A. energy
B. vitamins
C. proteins
D. mineral
17. Proteins are necessary for ----------- and repairing tissues.
A. growth
B. digestion
C. hydration D. sleep
18. Fats help the body to ------- and absorb certain vitamins.
D. fats and oils
A. provide energy only
B. maintain body temperature
C. build muscle mass
D. repair tissues
19. Which food processing method separates chaff from grains?
A. winnowing
B. Sorting
C. Grading D. Grinding
20. Which process is carried out before taking fruits to the market?
A. grading B. grinding
C. sorting D. winnowing
21. A nutritionist advises on --------.
A. architecture
B. music C. sports D. diet and health
22. Meal planning helps us to do all the following except -----------.
A. waste money B. save time C. eat fresh foods D. live healthy
23. A good meal plan should include -----------.
A. only fast foods B. a variety of foods C. expensive foods D. meals that require long hours to prepare
24. Weeding mainly involves ---------.
A. removing pest by hand B. watering plants C. removing unwanted plants D. using pesticides
25. Crop rotation helps to ----------. A. reduce pest
C. decrease yield
B. infestation increase pests
D. encourage weeds
26. The process by which plant make their own food is called ---------.
A. respiration B. photosynthesis
C. digestion
D. germination
27. Which nutrient is essential for root growth?
A. nitrogen B. potassium C. phosphorus D. oxygen
28. Amphibians live -----------. A. only in water B. only on land C. on land and water D. underground
29. A food web is made up of ----------. A green plant only B. decomposers C. many food chains
D. food nutrients
30. Wind speed is measured in -------------. A. millimeters (mm)
B. degrees Celsius
C. kilometers per hour (km/h) D. grams (g)
31. Which soil component binds the soil together? A. air
B. organic matter C. mineral matter D.
water
32. We need air in the soil ---------------------. A. for decomposers to breath B. to make the soil warm
C. to bind soil particles together
D. to improve soil structure
33. Humus is made up of -------------------. A. roots
B. decayed plants and animals C. soil and water D.
soil and roots
34. Which of the following is a natural agent of soil erosion?
C. pesticides
A. vehicles
B. strong winds
D. fertilizers
35. Soil erosion is controlled by ----------------. A. cover cropping
B. deforestation C. adding manure
D. pollution
36. How does mulching help in soil erosion control? A. by increasing soil temperature
B. By preventing soil from drying out
C. By reducing the impact of raindrops on the soil
D. by making the soil hard and compact
37. ------------- is when water vapor rises into the sky and cools down to form clouds.
A. precipitation B. condensation
C. evaporation D. runoff
38. Dumping of industrial waste into water sources can lead to -----------.
A. increase in the growth of weeds
B. death marine animals
C. robust growth of plants
D. increased water transport
39. Heavy machinery can damage soil by --------. A. making it more fertile
C. increasing oxygen
B. compacting it
D. watering it
40. We use ------------------ to measure the distance of a large area like football field.
A. balance
B. ruler
C. measuring wheel D. string
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