Common Entrance Revision: Includes more advanced questions
15 questions suitable for CE or scholarship
KS3 Levels 5 and 6
Answer all 15 questions and then press ‘Submit’
Your score and any corrections will then be shown

1. What is meant by the gestation period

The time between one egg being released and the next

The time between fertilization and the birth of a baby

The time between birth and puberty

The time it takes an egg to travel down the fallopian tube

2. Bananas are rich in which substance?

Iodine

Iron

Calcium

Potassium

3. What is the test for carbon dioxide gas?

Burns with a squeaky 'pop'

Makes anhydrous cobalt chloride turn pink

Turns limewater cloudy

Re-lights a glowing splint

4. A ball is held in place at the top of a slope at position X
When the ball is released it rolls down the slope, eventually coming to rest at position Z

Accoding to the law of conservation of energy, energy can never be created or destroyed so in what form does the energy exist at postion Z?
 

 

Strain energy

Chemical energy

Potential energy

Heat energy

5. Name the two products when magnesium reacts with zinc oxide

Magnesium oxide and zinc

Hydrogen and magnesium oxide

Magnesium and zinc oxide

Zinc oxide and water

6. Wax is a compound of hydrogen and carbon (known as hydrocarbon).

What are the products of the reaction that takes place when wax burns completely in air.

carbon dioxide + water

Carbon and oxygen

Water and hydrogen

carbon dioxide and hydrogen

7. He is the symbol for which chemical element

Helium

Gold

Iron

Tin

8. What gas is produced when calcium carbonate is added to dilute hydrochloric acid?

Helium

Hydrogen

Oxygen

Carbon dioxide

9. Why might we add iodine solution to a slice of food in the laboratory

To see if it is cooked

To test for sugar

To see how warm it is

To test for starch

10. A fungus is an example of a saprophyte.
Saprophytes are living organisms that:

Produce their own food

Eat other organisms for food

Break down dead organisms for food

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