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ZIMSEC Grade 7 Science and Technology Online Mock 1 - Paper 1 Practice

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Title ZIMSEC Grade 7 Science and Technology Online Mock 1 - Paper 1 Practice

Description Original Grade 7 7150/01 Paper 1-style timed mock. Forty multiple-choice questions covering Health and hygiene, nutrition, crops, plants and animals, conservation, tools, energy, disasters, digital technology and innovation. No signup required; one attempt with an instant automatic score.

Total Marks 40 points

Duration 105 minutes

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Session Window Started 04 Sep 2026 04:13 and closes 04 Sep 2026 05:58.

Exam questions

Answer all 40 questions, then submit the paper once.

Question 1

Multiple Choice - 1.00 marks

Prompt Which organs remove wastes from the blood and form urine?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Lungs
B. Heart
C. Kidneys
D. Stomach

Question 2

Multiple Choice - 1.00 marks

Prompt Which organ coordinates thinking, memory and body responses?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Brain
B. Liver
C. Skin
D. Large intestine

Question 3

Multiple Choice - 1.00 marks

Prompt Where are most digested nutrients absorbed into the blood?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Mouth
B. Oesophagus
C. Large intestine only
D. Small intestine

Question 4

Multiple Choice - 1.00 marks

Prompt What happens in the air sacs of the lungs?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Food is digested
B. Oxygen and carbon dioxide are exchanged
C. Urine is stored
D. Bones are joined

Question 5

Multiple Choice - 1.00 marks

Prompt Which disease is infectious and can spread through the air when an infected person coughs?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Diabetes
B. Hypertension
C. Tuberculosis
D. Rickets

Question 6

Multiple Choice - 1.00 marks

Prompt Which condition is non-communicable?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Hypertension
B. Measles
C. Cholera
D. Influenza

Question 7

Multiple Choice - 1.00 marks

Prompt Which insect can transmit malaria?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Housefly
B. Bee
C. Butterfly
D. Female Anopheles mosquito

Question 8

Multiple Choice - 1.00 marks

Prompt How does vaccination help the body?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. It replaces all food nutrients
B. It prepares the immune system to fight a specific disease
C. It prevents every injury
D. It removes the need for hygiene

Question 9

Multiple Choice - 1.00 marks

Prompt Why must sewage be treated before release?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. To add more plastics to rivers
B. To increase bad smells
C. To reduce pathogens and pollution
D. To make drinking water salty

Question 10

Multiple Choice - 1.00 marks

Prompt What does boiling unsafe water mainly do?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Kills many disease-causing microorganisms
B. Adds oxygen permanently
C. Removes every dissolved mineral
D. Turns water into food

Question 11

Multiple Choice - 1.00 marks

Prompt Why should fresh fruit and vegetables be washed before eating?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. To remove all nutrients
B. To change their species
C. To make them heavier
D. To reduce dirt and harmful microorganisms

Question 12

Multiple Choice - 1.00 marks

Prompt Which practice prevents cross-contamination in a kitchen?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Using one unwashed board for raw meat and salad
B. Keeping raw meat separate from ready-to-eat food
C. Leaving cooked food uncovered beside waste
D. Handling food with unwashed hands

Question 13

Multiple Choice - 1.00 marks

Prompt Which nutrient is the body’s main source of energy?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Minerals
B. Water
C. Carbohydrates
D. Vitamins

Question 14

Multiple Choice - 1.00 marks

Prompt Which nutrient is especially important for growth and repair of body tissues?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Protein
B. Roughage only
C. Water only
D. Salt only

Question 15

Multiple Choice - 1.00 marks

Prompt Which nutrient helps insulate the body and stores concentrated energy?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Vitamin C
B. Fibre
C. Iron
D. Fat

Question 16

Multiple Choice - 1.00 marks

Prompt What is the main role of dietary fibre?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. To form bones
B. To help food move through the digestive system
C. To carry oxygen
D. To replace water

Question 17

Multiple Choice - 1.00 marks

Prompt A lack of vitamin C may cause which deficiency disease?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Rickets
B. Anaemia
C. Scurvy
D. Goitre

Question 18

Multiple Choice - 1.00 marks

Prompt A lack of iron may lead to which condition?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Anaemia
B. Scurvy
C. Night blindness only
D. Obesity

Question 19

Multiple Choice - 1.00 marks

Prompt Which mineral is important for strong bones and teeth?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Sodium only
B. Iron
C. Iodine
D. Calcium

Question 20

Multiple Choice - 1.00 marks

Prompt What is a balanced diet?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. One food eaten in very large amounts
B. A diet with suitable amounts of all needed nutrients
C. A diet without water
D. Only imported foods

Question 21

Multiple Choice - 1.00 marks

Prompt Which habit can increase tooth decay risk?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Drinking safe water
B. Cleaning teeth regularly
C. Frequently eating sugary snacks
D. Eating vegetables

Question 22

Multiple Choice - 1.00 marks

Prompt Why can an indigenous meal of grains, legumes and vegetables be valuable?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. It can provide varied nutrients from locally available foods
B. It always contains no fibre
C. It cannot be balanced
D. It removes the need for safe preparation

Question 23

Multiple Choice - 1.00 marks

Prompt Which food-preservation method removes much of the water microbes need?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Leaving food in warm rain
B. Adding dirty water
C. Keeping food uncovered
D. Drying

Question 24

Multiple Choice - 1.00 marks

Prompt Why should perishable food be kept cool?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. To speed up microbial growth
B. To slow spoilage and microbial growth
C. To remove every vitamin
D. To turn it into dry grain

Question 25

Multiple Choice - 1.00 marks

Prompt Which conditions are normally needed for seed germination?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Light, fertiliser and soil only
B. Wind, salt and darkness
C. Water, oxygen and suitable warmth
D. Pesticide, smoke and frost

Question 26

Multiple Choice - 1.00 marks

Prompt Which word equation describes photosynthesis?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Carbon dioxide + water -> glucose + oxygen
B. Oxygen + glucose -> carbon dioxide only
C. Water + oxygen -> soil
D. Glucose + minerals -> sunlight

Question 27

Multiple Choice - 1.00 marks

Prompt Which substance in leaves traps light energy for photosynthesis?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Haemoglobin
B. Starch
C. Cellulose
D. Chlorophyll

Question 28

Multiple Choice - 1.00 marks

Prompt What is a main function of roots?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. To produce flowers only
B. To anchor the plant and absorb water and minerals
C. To release seeds into the air only
D. To make every fruit sweet

Question 29

Multiple Choice - 1.00 marks

Prompt Which tissue carries water upward through a plant?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Phloem only
B. Epidermis
C. Xylem
D. Pollen

Question 30

Multiple Choice - 1.00 marks

Prompt Why is crop rotation useful?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. It can help maintain soil fertility and break pest cycles
B. It guarantees rain
C. It removes the need for soil care
D. It means planting one crop forever

Question 31

Multiple Choice - 1.00 marks

Prompt Why are legumes useful in a crop rotation?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. They always remove all soil nitrogen
B. They prevent any seed formation
C. They make soil waterproof
D. They can help add nitrogen through root bacteria

Question 32

Multiple Choice - 1.00 marks

Prompt Which is an example of integrated pest management?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Using the strongest chemical every day
B. Combining monitoring, biological and careful control methods
C. Ignoring crop damage
D. Destroying beneficial insects deliberately

Question 33

Multiple Choice - 1.00 marks

Prompt Which feature helps a wind-dispersed seed?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. A heavy stone coat
B. A hook for animal fur only
C. Light wings or hairs
D. A large water-filled shell only

Question 34

Multiple Choice - 1.00 marks

Prompt What is pollination?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. The transfer of pollen from anther to stigma
B. The growth of a root
C. The splitting of a fruit
D. The absorption of water by soil

Question 35

Multiple Choice - 1.00 marks

Prompt Which organism is a producer in a food chain?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Hawk
B. Goat
C. Human
D. Green plant

Question 36

Multiple Choice - 1.00 marks

Prompt In the food chain grass -> grasshopper -> frog -> snake, which organism is the primary consumer?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Grass
B. Grasshopper
C. Frog
D. Snake

Question 37

Multiple Choice - 1.00 marks

Prompt Which animal is a herbivore?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Lion
B. Eagle
C. Goat
D. Frog

Question 38

Multiple Choice - 1.00 marks

Prompt Which farm animal is a ruminant?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. Cattle
B. Chicken
C. Pig
D. Rabbit only

Question 39

Multiple Choice - 1.00 marks

Prompt Why should animal housing be kept clean and dry?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. To attract parasites
B. To contaminate feed
C. To stop ventilation
D. To reduce disease and improve animal welfare

Question 40

Multiple Choice - 1.00 marks

Prompt Which is an example of an animal providing assistance to people?

Select one answer.

Select one answer. Your final choice is the answer that will be marked.

A. A wild animal raiding crops
B. A trained guide dog helping a person with visual impairment
C. A pest damaging stored grain
D. A stray animal spreading waste

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