Selected BECE Integrated Science Past Questions With Answers From 1990 To 2016
As the Basic Education Certificate Examination approaches candidates are expected to solve more questions. This increases their chances of succeeding in the upcoming the exams. This article contains selected integrated science past questions with answers from 1990 to 2016. We recommend students to lay hands on all of them as part of preparations toward the examination.
Do well to subscribe to the page, like, leave your comment and share with others. Discuss our selected integrated science past questions with answers from 1990 to 2016 with your classmates.
Integrated Science Past Questions (BECE 1990 Q4a)
State four ways by which plants are able to protect themselves against animal
Suggested answer
- Release of unpleasant liquids which make them distasteful
- Using thorns or spines which cause pain when animals come in contact
- Poisonous parts causes death or disorders in animals
- Sticky substances which stick in the mouth of animals which try to feed on them
- Producing unpleasant smell or scent to drive away animals
(BECE 1999 Q2 C i) Integrated Science Past Questions
Using any three of the following organisms to construct a food chain
Rat, hawk, okra leaves, toad, cassava, man, grasshopper
Suggested answer
- Okra leaves à grasshopper à toad
- Okra leaves à grasshopper à man
- Cassava à rat à hawk
- Cassava à rat à man
Integrated Science Past questions (BECE 2007 Q 4a)
State two examples of a
- Carnivore ii. Herbivores
Suggested answer
Carnivore
- Lion
- Tiger
- Leopard
- Crocodile
Herbivore
- Rabbit
- Elephant
- Goat
- Cow
- Antelope
BECE 1990, Q4 a; Integrated Science Past Questions
What is pollution?
Name two types of pollution. For each of type give one pollutant and its sources
Suggested answers
- Pollution is the introduction of waste into the environment
| TYPES OF POLLUTION | POLLUTANT | SOURCES |
| Water pollution | Untreated waste discharge into water | Industries |
| Air pollution | Carbon monoxide, smoke | Car exhaust |
| Land pollution | Scrap metal, bottles | Industries, homes |
2008 Q 2C Integrated Science Past Questions
- What is recycling?
- Give two advantage of recycling of materials
- List three recycled product in Ghana.
Suggested answers
Recycling is the conversion of waste materials into useful products
Advantage of recycling
- It reduces waste
- Provides useful goods
- Conserves resources
- Provides employment
Recycled products
- Polythene bags
- Iron rod
- Paper
- Rubber
- Slippers
- Tissue paper
- Biogas
Question 6a, BECE 2012
What are; i. Annual plants ii. Perennial plants
Annual plants are plants which complete their life cycle in one year
Perennial plants are plants which continue to grow from season to season after harvest.
1994 BECE Q1d Integrated Science
- Describe how ions are formed from atoms
- State two differences between a proton and an electron
- Write the chemical symbol for each of the following
Atom of lithium
A molecule of chlorine
An atom of Oxygen
Ions are formed when an atom gains or loses an electron. When an atom gains electrons the number of electrons becomes greater than the number of protons and vice versa. This forms positive and negative ions.
| Proton | Electron |
| Found in the nucleus | Found on the shell |
| Positive charge particle | Negative charge particle |
| It is not involved in chemical reaction | It is involved in chemical reaction |
An atom of Lithium ==> Li
A molecule of Chlorine ==> Cl2
An atom of oxygen ==> O
2004 Q 2B I Integrated Science Past Questions
Explain why an atom is said to be chemically neutral
Answer
This is because the number of protons is equal to the number of electrons, so they cancel out which make the net charge equal to zero.
2002 Q 1b
- Define valency
- State the valencies for the following elements and radicals
Iron
Zinc
Hydroxyl
Carbonate
Solution
Valency is the combining powers of an element
Iron ==> 2 0r 3
Zinc ==> 2
Hydroxyl ==> 1
Carbonate ==> 2
1991 Q 1 (e) Integrated Science Past Question
- Carbon dioxide is prepared in the laboratory by pouring some dilute hydrochloric acid on Calcium carbonate. Give a balance equation for this reaction.
- How would you test for carbon dioxide?
- Give one use of carbon dioxide
Solutions
CaCO3 + 2HCl2 ==> CaCl2 + H2O + CO2
You can test carbon dioxide by passing it through lime water, the colour will turn milky.
Uses of carbon dioxide
- For making soft drinks
- For preserving fruits
- Used as refrigerant
- Used as fire extinguisher
1992 BECE Q 2C
- Using any ammonium compound. Describe how the general preparation of ammonia gas is prepared. No diagram is required.
- Write the chemical equation for the preparation.
See suggested answers
Ammonia gas can be prepared by heating powdered ammonium chloride (NH4Cl) and sodium hydroxide (NaOH)
The ammonia gas produced is dried by passing it through calcium oxide
NH4Cl + NaOH ==> NaCl + H2O + CO2
2016 Q 2C
- List two properties of water
- Explain why it is advisable to wash clothes with soft
- Using litmus paper, explain why water is neutral.
Find answers
Properties of water
- Odourless
- Colourless
- Insipid/ tasteless
- Boils at 1000CT
- Neutral to litmus paper
- Freezes at 00C
Why it is good to wash clothes with soft water
- It is because it easily lathers with soap so one does not waste soap
Water is neutral to litmus paper because
- It has a PH of 7, which makes it neither acidic or alkaline/basic
2005 Q5 (a) Integrated Science Past Questions
- Give two differences between a parasite and a vector
- Write down the names of three endoparasites and their hosts.
Answers
| Parasite | Vector |
| Causes disease | Contains diseases causing organisms |
| Usually animal or plant | Only animals |
| Lives in or on hosts | Lives independently |
| Endo Parasite | Host |
| Guinea worm | Man |
| Plasmodium | Man or animal |
| Tapeworm | Man or animal |
| Schistosoma | Man or animal |
2007 Q 3c integrated Science past questions
- Explain how sound is produced
- State one example each, of the following instruments.
- Wind instrument
- String instrument
Solutions
Sound is produced when a vibrating object sets a mass of air into vibration.
Examples of the instruments
- Wind instrument è organ, flute, trumpet, saxophone whistle, tuba
- String instrument è guitar, piano, banjo, violin, harp
2008 Q 4a
- What is echo?
- State two uses of echoes
Echo is the reflection of sound waves from a hard surface
Uses of echoes
- Use to determine depth of water
- Use by ships to determine barriers or obstacles at night
- Used to determine the position of shoal of fishes
- Used in ultra sound equipment in hospitals for clinical diagnosis.
The end, check on previous posts and connect with us through the social links provide
Previous Posts
Download BECE July Mock Questions – All Core Subject in PDF
How to copy Facebook post and save it
How to sleep more in less time
Did You Know Where You Put Your Hands While Sleeping Needs Healings?
How to invest your dreams and live your life – Ultimate Beginners Guide
How To Learn and Remember More for Exams
Subscribe by clicking on the red bell icon at the left corner bottom of this page. This will ensure that you receive notifications any contents are uploaded on the site.
Tap on any of the links below to join our groups.
Join any of the Groups
Subscribe by clicking on the red bell icon at the left corner bottom of this page. This will ensure that you receive notifications any contents are uploaded on the site.
Tap on any of the links below to join our groups.
Join any of the Groups
Join Telegram Channel HERE
