Page 13 - Focus SPM KSSM 2021 Science (BI Version)

Science SPM Answers

Chapter Techniques of Measuring • Frequently monitor at home using a Checkpoint 4.2
digital sphygmomanometer.
3 the Parameters of Body Q1 (a) Increase in the use of fossil fuels
Health
Checkpoint 3.4 (b) Extreme climate change
(c) Production of greenhouse gases
Q1 Body Mass Index (BMI) is the which cause global warming
Checkpoint 3.1 measurement of body mass against
Q1 Body temperature is the degree of height. Q2 Hydro and solar energy. Malaysia is a
hotness and coldness of body. tropical country with plenty of natural
Q2 Reduce body mass can increase water reserves. Apart from that,
Q2 risks of heart problem, body Malaysia is situated at the equator
Type of immunity, anaemia, depression and and receives enough sunshine the
thermometers Function others. whole year round.
Clinical Used to measure body Q3 Practise healthy eating, do consistent Q3 Geothermal energy has many
thermometer temperature physical activity (accept other suitable limitations and depends on
answers) several factors especially suitable
Laboratory Used to measure geographical factor.
thermometer temperature of liquids SPM Practice 3
Form
4 Rectal Used to measure body Objective Questions Checkpoint 4.3
temperature of babies
thermometer
through their anus 1. B 2. C 3. A 4. C 5. C Q1 (a) Sewage and rubbish disposed
6. B 7. D 8. A 9. A 10. B
Infrared Used to measure body of into the river pollute our water
thermometer temperature without Subjective Questions source and threaten aquatic life.
having any contact with 1. (a) Reading 1: 35ºC (b) Generation, management and
the body Reading 2: 44ºC breakdown of solid wastes
Reading 3: 54ºC contribute towards the production
Q3 Bacterial infection and exposure to of greenhouse gases.
extreme heat. Reading 4: 72ºC Q2 (a) Application of 5R
(b) Laboratory thermometer
Checkpoint 3.2 (c) Bacterial infection, virus infection (b) Carry out treatment and
processing of solid wastes.
Q1 Pulse rate is the measure of number and inflammation of joints
of heart beats per minute. (d) Rectal thermometer
2. (a) Heart attack, high blood Checkpoint 4.4
Q2 Wrist is where the pulse beat is clear,
exposed and easy. pressure Q1 Excessive use of chemical fertilisers
(b) Change diet and do light
Q3 No. Pulse rate is not like finger prints. exercises at least three times will affect the pH of soil and causes
Pulse rate of everyone may be the per week. it to be unsuitable for agriculture.
same or different based on factors (c) Ideal Body Mass Index is 18.5 Excess chemical fertilisers will enter
like gender, age and physical activity. to 24.9. Ideal body mass can be the rivers and pollute the water
A finger print of everyone differs since maintained by a healthy diet and source.
birth. consistent physical activity. Q2 (a) Control logging activities by
Q4 Pulse beat is the pressure felt when gazetting more areas as reserve
blood is pumped by the heart and forest.
flow through blood vessel near the Chapter Green Technology (b) Replanting of trees
surface of the skin. Pulse rate differs 4 for Environmental
according to factors like gender, age Sustainability Checkpoint 4.5
and physical activity.
Gender: Females have higher pulse Checkpoint 4.1 Q1 Greenhouse effect and formation of
rate than males. acid rain
Age: Pulse rate decrease with aging. Q1 Green technology is the development
Physical activity: Vigorous activity and application of products, Q2 (a) Green transportation is introduced
increases the pulse rate. equipment and systems used to minimise the release of
conserve the environment and greenhouse gases
Checkpoint 3.3 nature, as well as minimising and (b) Invention of natural gas for
Q1 Blood pressure is the pressure reducing the negative effects of vehicles which does not use
applied by the blood on the artery human activities. petroleum as fuels.
during blood circulation when blood Q2 (a) energy conservation can be
is pumped by heart to the rest of the increased Checkpoint 4.6
body. (b) the county’s economy will be
Q2 Sphygmomanometer strengthened Q1 (a) Practise recycling by separating
your rubbish.
Q3 Energy sector, waste and wastewater
Q3 120/80 mmHg management sector, agriculture and (b) Save electricity by switching off
electrical appliances that are not
Q4 • Practise a healthy lifestyle, a forestry sector, transportation sector in use.
balanced diet and do exercises.

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