STD VII SCIENCE ONLINE SELF NECTA TEST FOR YEAR 2018

1. Which pair among these is concerned with reproduction in plants and animals correctly?.

  1. Ovary in plants and sperms in animals      
  2. Filament in plants and fallopian in animals
  3. Fruits in plants and testis in animals
  4. Flowers in plants and uterus in animals
  5.  Seeds in plants and ovary in animals
Choose Answer


2. In order for plants to continue surviving in their environment, they requires

  1. Air and soil 
  2. Air and water
  3. Soil and fertilizer
  4. Moisture and air
  5. Temperature and air
Choose Answer


   3.  Rice reproduces through                              

  1. Leaves
  2. Seeds
  3. Roots
  4.  Suckers
  5. Branches
Choose Answer


4, Which of the following groups of animals represents vertebrates? 

  1. Snail, scorpion, crocodiles
  2. Snail, monitor lizard, snake and fish 
  3. Monitor lizard, snake, spider and fish
  4. Snail, fish, frog and crocodile
  5. Lizard, snake, monitor lizard and crocodile
Choose Answer


5. Caterpillar is one of the stages of growth of a

  1. Bee
  2. Tsetse fly
  3. Jigger
  4. Cockroach
  5. Butterfly
Choose Answer


6. Which of the following are characteristic of animals?

  1. They grow, they breath, they eat , they move
  2. They grow, they breath, they sleep, they move
  3. They grow, they breath, they move, they reproduce
  4. They grow, they see, they move, they reproduce
  5.  They grow, Speak, they move, they reproduce
Choose Answer


7. Electricity is caused by the flow of

  1. Electrons 
  2.  Protons
  3. Newtons
  4. Charges
  5.  Atoms
Choose Answer


8.Which of the following is a characteristic of a chameleon

  1. It changes its sound
  2. It changes the type of food it eats
  3. It changes body colour
  4. It does not remove body waste
  5. It changes its movement
Choose Answer


9. Which among the following is a mammal 

  1. Snail
  2. Duck
  3. Bat
  4. lizard
  5. Frog
Choose Answer


11.Which of the following gases is highly consumed in the atmosphere by plants? 

  1. Carbon dioxide
  2. Oxygen
  3. Hydrogen
  4. Carbon monoxide
  5. Nitrogen
Choose Answer


12.In order for water to be safe for drinking, it is supposed to be

  1. Boiled and covered
  2. Filtered and covered
  3. Boiled, filtered and stored
  4. Exposed the sun the whole day the whole day then to be cooled
  5. Put in a pot and covered
Choose Answer


13.The following are essentials for health and growth of plants except

  1. Fertilizer from factories
  2. Water
  3. Carbon dioxide air
  4. Light from the sun
  5. Fertile soil
Choose Answer


14.Air that is highly required by animals for their survival is

  1. Oxygen
  2. Carbon dioxide
  3. Nitrogen
  4. Hydrogen
  5. Carbon monoxide
Choose Answer


15.A person who eats too fatty foods likely to get 

  1. Beriberi
  2. Epilepsy 
  3. Hypertension
  4. Diabetes
  5. Tuberculosis
Choose Answer


16.A disease caused by defects of red blood cells is called

  1. Beriberi
  2.  Sickle cell
  3. Cancer
  4. Diabetes
  5. Tuberculosis
Choose Answer


17.Which among these gases diffuses fastest in a closed room with charcoal?

  1. Hydrogen
  2. Carbon monoxide
  3. Carbon dioxide
  4. Oxygen
  5. Nitrogen
Choose Answer


18.What kind of glass can we use make our images look better?

  1. Convex mirror
  2. Concave mirror
  3. Flat mirror
  4. Convex lens
  5. Concave lens
Choose Answer


19.Why is it important to wash frui&before eating?

  1. In order to get rid of poison
  2.  Removing germs
  3. Removing sap
  4. Removing smell
  5. Removing salty taste
Choose Answer


20.Which part in the digestive system concerned with protein digestion

  1. Mouth
  2. Small intestines
  3. Large intestines
  4. Oesophagus
  5. Stomach
Choose Answer


21.What are the diseases caused by malnutrition?

  1. Marasmus, kwashiorkor, tickets
  2. Obesity, diabetes, coughing and dysentery
  3.  Marasmus, kwashiorkor, paralysis and yellow fever        
  4. Rickets, trachoma and marasmus 
  5.  Bilharzia, Malaria, tuberculosis and rickets
Choose Answer


22.What does a person loose most when he has diarrhoea?

  1. Air
  2. Water
  3. Proteins
  4. Carbohydrates
  5. Vitamins
Choose Answer


23.Which of the following nutrients are more suitable to children under five years?

  1. Carbohydrates, water and proteins
  2. Proteins, vitamins and salt
  3. Salt, proteins and water
  4. Vitamins, carbohydrates and water
  5. Carbohydrates, water and salt
Choose Answer


24.Which among the following diseases is caused by bacteria?

  1. Pressure
  2. Tuberculosis
  3. HIV/ AIDS
  4. Bilharzia
  5. Diabetes
Choose Answer


25.Which among the following groups of things are found in the fire engine?

  1. Fuel tank, carbon dioxide gas, and water
  2. Water tank, carbon dioxide gas,and oxygen
  3. Fire brigade, water and carbon dioxide
  4. Water tank, a tank of coal and acetylene gas
  5. Water tank, a tank mixes of gases and big coats
Choose Answer


26.Which of the following sentences gives a clear meaning of first aid?

  1. An immediate aid rendered to a person before taking him to hospital
  2. An immediate aid rendered to a person after reaching him to hospital
  3. An immediate aid rendered to a person by a health professional
  4. An aid rendered to a person whon has fainted
  5. An aid rendered to a person who has been bitten by a snake
Choose Answer


27.What would you do if you happened to see clothes worn by your friend on fire?

  1. Applying him with oil
  2. Putting water on the wounds
  3. Covering him with a heavy blanket or a heavy cloth
  4. Blowing him with oxygen
  5. Undressing him the burnt clothes
Choose Answer


28.Which of the following behaviours do not contribute to the spread of HIV AIDS?

  1. Sexual intercourse, drunkenness and breast feeding
  2. Sharing syringes and transfusion of contaminated blood
  3. Shaking hands, playing and eating together
  4. Poor education about HIV Aids and sex
  5. Prostitution and drug abuse
Choose Answer


29.Why do people living with HIV AIDS need foods with a lot of nutrients?

  1. Their disease is a long term disease 
  2. Their life is short so they need enough fats
  3. They frequently feel hungry
  4. They need to strengthen their body  immunity
  5. They need to be fat in order to avoid stigma from people
Choose Answer


30.The rightest way to diagnose a person with HIV/ AIDS is by

  1. Testing Tuberculosis
  2. Testing the body temperature
  3. Testing the reduction of body weight
  4. Checking whether he has wounds in the mouth and face
  5. Testing the level of immunity in the body
Choose Answer


31.Which action among these proves that air occupies space in the environment?

  1. Breathing through the mouth and nose
  2. Air bubbles from a bottle of water immersed in the water
  3. Long time coughing
  4. Moisture passing through the air 
  5. Dropping a stone into an overflowing can .
Choose Answer


32.Observe the diagram below (diagram 1) then answer the question that follows

                (ii)      (iii)       (iv) (v)

Which among the following diagram shows the characteristic of light passing through water?

  1. ii
  2. iv
  3. iii
  4. i
  5. v
Choose Answer


33.  What will happen if a glass fun water and covered with a glass cover is turned upside down?

  1. Water will pour down
  2. The cover will drop down
  3. The glass will break
  4. Water will not spill
  5. Water will spill out
Choose Answer


34.  What is the main step that follows after discovering a problem in scientific investigation?

  1. Starting a deep investigation
  2. Formulating a hypothesis
  3. Preparing a procedure
  4. Preparing a scientific experiment
  5. Collecting information and data
Choose Answer


35.  Which is the correct procedure for writing a scientific report?

  1. Objective, Procedure, materials. results, conclusion
  2. Materials, aim, procedure, results conclusion
  3. Procedure, aim, materials, conclusion, materials
  4. Procedure, aim, conclusion, results materials
  5. Aim, materials, procedure, results conclusion
Choose Answer


36.  How can iron be prevented from rusting?

  1. By applying ash
  2. By washing it using water
  3. By painting it
  4. By covering it with mud
  5. By covering it with sooth
Choose Answer


37.Which  among  the following combinations is pure metal

  1. Chlorine, zinc, diamond and gold
  2. Iron, carbon, nitrogen and oxygen
  3. Oxygen, zinc, sulphur and chlorine
  4. Copper, iron, carbon monoxide and zinc
  5. Gold, zinc, aluminium and silver
Choose Answer


38.   Which of the following is an example of an element?

  1. Water
  2. Salt
  3. Vapour
  4. Sugar
  5. Carbon dioxide
Choose Answer


39.   Clouds falling down nearing the earth surface are known as

  1. Mist
  2. Salt
  3. Hydrogen
  4. Ice
  5. Rain
Choose Answer


40.   Observe the following diagram  (diagram 2), then answer the following question

Letter P represents

  1. .Perpendicular light
  2. Reflected light
  3. Bent light
  4. Straight light 
  5.  Parallel light
Choose Answer


41.     Diagram number 3 shows the number of patients who were taken to Mlingotini hospital in the year 2017 for treatment.

Calculate the percentage of patients who were suffering from noncommunicable diseases.

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42.   (a) State two important necessities for the growth of a plant

1.. 2.

(b) Identical twins are the results of

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43.   Identify two ways which can be used to present sorted investigation data

1.

ii

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44 Show in every group whether the process taking place is a mechanical change or physical change

(a)       Water changing to vapour

(b)       Burning of papers

(c)       Iron rusting

(d)Freezing of a soda

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45. If a pupil can lift a load of a weight of 10 Newton, and carrying it home, distance of 500m, how much work will he do?(Use the pace provided to your way and results.

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