CSEC Integrated Science May/June 2018 Past Paper 1 (Part 1)

Credit for this video goes to THINK HEALTH TV Answer the questions below: Practice Questions

Answer the following questions in your notebook or on paper.

Define sublimation.
Explain what is meant by osmosis.
State two conditions necessary for germination.
Which part of a flower develops into a seed after fertilisation?
State one reason why feeding a baby breast milk during the first few days after birth is important.
Name the birth control method that is most effective in preventing sexually transmitted infections (STIs).
Write the word equation for photosynthesis.
State the energy conversion that takes place during photosynthesis.
Name the organ that stores bile.
Name the acid produced in the stomach.
What is the function of diuretics in the body?
What structure separates the left and right sides of the heart?
Name the bone found in the upper arm.
State two features of an efficient respiratory surface.
Distinguish between aerobic and anaerobic respiration.
State two processes involved in excretion by the kidney.
Identify one source of air pollution.
Name the method of pest control that uses natural predators.
Name one method of heat transfer.
State the form of energy possessed by a moving object.
Explain why water should not be used to put out an electrical fire.
Name one example of a first-class lever.

Click to check Answer

Sublimation is the change of state from a solid directly to a gas without passing through the liquid state.
Osmosis is the movement of water molecules from a region of high water concentration to low water concentration through a semi-permeable membrane.
Suitable temperature; water; oxygen.
Ovule.
It provides antibodies / boosts the baby’s immune system / protects against infection.
Barrier method.
Carbon dioxide + water + light energy → glucose + oxygen.
Light energy is converted to chemical energy.
Gall bladder.
Hydrochloric acid.
They remove excess water from the body.
Septum.
Humerus.
Moist surface; large surface area; rich blood supply.
Aerobic respiration uses oxygen; anaerobic respiration does not use oxygen.
Filtration and reabsorption.
Vehicle exhaust / factory smoke / burning fossil fuels / wildfires / volcanic eruptions.
Biological control.
Conduction / convection / radiation.
Kinetic energy.
Water conducts electricity and may cause electric shock.
Seesaw / crowbar / claw hammer.

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