STD VII SCIENCE ONLINE SELF NECTA TEST FOR YEAR 2020
11.What are the basic necessities of life?
Water, food and air.
Vitamins, water and air.
Proteins, carbohydrates and minerals.
Water, air and fruit.
Air, clothing and light.
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12. Which part of the uterus for a woman works the same as the sperm duct in man?
Ovary
Uterus
Cervix
Falopia tube
Virgina
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13. Why is breast milk important to the baby?
They have the same temperature as the mother's temperature.
They contain nutrients and natural immune cells.
They have the same temperature as boiled milk.
They do not contain pathogens.
They are available whenever needed.
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14. What is bone function?
Protect muscles.
Making blood cells.
Making salt.
Protecting the blood system.
Skin protection.
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15. What are the main sources of protein '?
Milk, meat and eggs.
Milk, fish and vegetables.
Milk, fish and fruit.
Milk, meat and carrots.
Milk, fish and corn.
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16. Which of the following is not the function of saliva in the mouth?
Protein digestion.
Carbohydrate digestion.
Making food wet.
Make food soft.
Facilitate food digestion
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17. What is the cause of diabetes?
Lack of thyroid hormone.
Lack of adrenal hormone.
Deffect in the thyroid gland.
Deffect in pituitary gland.
Deffect in the pancreas.
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18. What is the function of cell membrane in a plant?
Separate the living parts of a cell.
Making the plant cells soft.
Formation of plant cells.
Prevent water loss from the plant.
Facilitate photosynthesis .
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19. In which group of animals does the bat belong?
Mammalia
Reptilia
Bird
Owl
Amphibians
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20. What advice does not apply to anAIDSvictim ?
Use the medication as prescribed by your doctor.
Having AIDS-free partners.
Accept yourself and educate others.
Living with hope and self-care.
Eat a complete diet and check your health regularly.
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21. What is one way to reduce the risk ofHIV infection?
Allocate special living areas for people living with HIV.
Not sharing food with people living with HIV.
Eat a complete diet and drink safe water.
Changing habits and quitting unsafe sex.
Exercise.
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22. The following items conduct heat except
wire
Air
Plastic
Nail
Water
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23. In first class lever, where is the fulcrum located?
Behind the effort.
Beside the load.
Infront of the effort.
Same location as wheel.
Between the load and effort.
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24. Why are machines important in everyday life?
Used to increase strength.
Used to simplify tasks.
Used to carry luggage.
It is used to strengthen muscles.
Relieves joint pain.
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25. Which of the following items is a simple machine?
Lever
Winch
Bicycles
Car
Motorcycles
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26. How can you distinguish magnets from other types of materials?
Magnets are more powerful than other materials.
Magnets have the ability to attach objects to metal objects.
The magnet is made of stainless steel.
Magnets are heavier than other materials.
The magnet is black.
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27. If a machine carries a load of 60 newtons in an effort of 75 newtons, find the mechanical advantage?
450
4500
8
0.8
1.25
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28. What device is used to measure current?
Resistor
Switch
Ammeter
Voltimeter
Tester
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29. When Hafizi dipped a piece of metal into a container filled with water, about 100 cm of water spilled.What information is correct about this scientific practice?
The amount of water spilled is the same as what is left in the bucket.
The volume of the stone is the same as the volume of spilled water.
Spilled water is heavier than stone.
A stone is thicker than water poured out.
Spilled water and stone weigh the same.
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30. What is the first aid for a nosebleeding person?
By lying on the face.
By placing a cloth behind the head.
By placing a cloth with lukewarm water on the face.