Revise these 2022 BECE Integrated Science Questions and Answers now as part of your BECE final preparation. These are predicted questions and answers.
This question is related to the image of this post.
Main Practical Question:
Identify the human organ.
Label at least five parts
Give three functions or uses of the organ
Identify two infections that can affect the organ.
Define the following and give an example of each
(i) Herbivore
Definition: An animal that feeds only or mainly on plants
Examples: goats, cattle, sheep, camel, giraffe, rabbit
(ii) Carnivore
Definition: An animal that feeds only or mainly on other animals
Examples: lion, tiger, crocodile, wolf, hyena, etc,
(iii) Omnivore
Definition: An animal that feeds on both plants and animals
Examples: human, chicken, [any one for each]
Define Osmosis:
The movement of a solvent through a semipermeable membrane from a dilute to a more concentrated solution
Or:
The movement of solvent molecules from a region of low concentration to a region of higher concentration
(b)Give examples of everyday observations in terms of capillary action
Kerosene or oil rising up a wick
Water rising up in a towel with one end soaked in water
Ink rising up on a blotting paper
Water rises up from the lower to the upper layers of soil.
(i) Processes by which heat can be transferred Conduction, convection, and radiation
(ii) Appliances that use the thermostat
(iii) Electric pressing iron, refrigerator, freezer, electric kettle, air-conditioner, room heater
[any three]
What is a saturated solution?
A solution containing the maximum amount of solute that can be absorbed in a given
temperature
Or:
A solution that cannot dissolve any more solute at a given temperature
| Classification: | solution, suspension, or a colloid: | |
| Clay in water | – | suspension |
| Sugar in water | – | solution |
| Ammonia in water | – | solution |
| Powdered chalk in water – | suspension |
Write the chemical Equation for the following chemicals
| calcium hydroxide zinc chloride [zinc (II) chloride] | Ca(OH)2 ZnCl2 |
| sodium nitrate [sodium trinitrate (V)], | NaNO3 |
| calcium carbonate [calcium trioxocarbonate (IV)] potassium sulfate [potassium tetraoxosulphatecolored (VI)] | CaCO3 K2SO4 |
What is Personal Hygiene?
The practice of cleanliness of a person and his/her physical environment
(ii) Give five ways by which personal hygiene could be maintained
Bathing regularly (at least twice a day)
Brushing one’s teeth regularly (advisedly, after each meal)
Washing one’s clothes regularly
Washing hands with soap after visiting the toilet
Keeping one’s room clean and tidy
Cleaning one’s bathroom and toilet regularly.
What is Satellite?
Any heavenly body that orbits (revolves around) a larger one
Give any four uses of artificial satellites
Weather studies and forecasting
Telecommunication
Sending and receiving TV signals
Taking photographs from space for various purposes
Internet networking
Global Positioning System (GPS) – a worldwide navigation system.
State three characteristics of an insect-pollinated flower
Petals are brightly coloured
The larger size of flowers
Nectar present
Attractive scent
Relatively fewer but larger pollen grains
State three characteristics of a wind-pollinated flower
Dull colored petals
Nectar absent
No unattractive scent
Relatively more but smaller pollen grains
