Basic Science

Len Academy Examination Questions for Basic Science, JSS3, 3rd Term

len Alfred Ajibola - Thu, 28th May, 2020 @ 07:38: AM

Topics in Basic Science

Resources from living things Resources from animals Importance of immunization Types of Carbohydrates: Monosaccharides and Polysaccharides Carbohydrates: Disaccharides and Oligosaccharides Len Academy Examination Questions for Basic Science, JSS2, 2nd Term Len Academy Examination Questions for Basic Science, JSS3, 3rd Term Len Academy Examination Questions for Basic Science, JSS3, 2nd Term Primates: Characteristics of Primates Effects of improper waste management Waste Management: Causes of waste in the society Concept of mass and weight Mineral Salts: Sources, functions and deficiencies of macronutrients Sources, functions and deficiencies of micronutrients Len Academy questions for Basic Science JSS1, second Term Len Academy mid-term test questions for Basic Science JSS1, 2nd Term Microorganisms causing food, water and air borne diseases Vector borne organisms and the diseases they cause Bones of the Human Skeleton Meaning of Drugs, Type of Drugs and Side effects of Drugs

Academic Questions in Basic Science

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Vaccination involves a process of introducing pathogens or germs into a person in order to prevent such person from the diseases they cause.

  • A. True

  • B. False

With regards to the human health, foreign bodies are best regarded as _____.

  • A. International bodies

  • B. Antilators

  • C. Antibodies

  • D. Antigens

  • E. Antibiotics

  • F. Antidotes

Disease causing organisms are termed _____.

  • A. Pests

  • B. Pathogens

  • C. Vectors

  • D. Insects

  • E. Disease carriers

  • F. All the above options are correct

____ is formed from a reaction utilizing oxygen and glucose in the mitochondria of cells.

  • A. Galactose

  • B. Fructose

  • C. Sucrose

  • D. AMP

  • E. ADP

  • F. ATP

Which of the following statement is false concerning carbohydrates?

  • A. They are composed of carbon, hydrogen and oxygen only

  • B. Carbon has the highest ratio of the constituent elements of carbohydrates

  • C. All carbohydrates are sugars

  • D. Fructose is a carbohydrate

  • E. Natural milk contains lactose and it's a carbohydrate

  • F. Fatty foods contains high calories of energy when compared to the same quantity of carbohydrate foods

Which of the following is a class of food?

  • A. Water

  • B. Fibre

  • C. Roughages

  • D. Latex

  • E. Tanins

  • F. Wax

Brachiation is a specialized form of movement exhibited by _____.

  • A. Human beings

  • B. Babbons

  • C. Chameleons

  • D. Toads

  • E. Millipedes

  • F. Birds

_____ is a form of locomotion whereby an organism move by means of its two hind limbs.

  • A. Pedalism

  • B. Duo Pedalism

  • C. Double Pedalism

  • D. Dual Pedalism

  • E. Bipedalism

  • F. Copedalism

Basic Science Questions, JSS3, Third Term:

1. Which of the following is NOT part of a tooth?

  1. Canine
  2. Crown
  3. Pulp
  4. Root


2. The dwelling place of plants and animals is called _____.

  1. Habitat
  2. Ecosystem
  3. Ecology
  4. Community
  5. Please read on various Ecological Concepts here.


3. Which of the following is NOT a solid particle pollutant?

  1. Carbon(IV)oxide
  2. Soot
  3. Pollen grains
  4. Sand


4. Single circulation is seen in _____.

  1. Shark
  2. Rat
  3. Mouse
  4. Cattle


5. _____ force keeps a satellite moving around the earth.

  1. Gravitational
  2. Universal
  3. Centripetal
  4. Centrifugal
  5. Please read on Force and Motion here.


6. _____ is an example of a renewable energy.

  1. Wind
  2. Wool
  3. Kerosene
  4. Coal


7. Echo is caused by _____.

  1. Refraction of sound
  2. Deflection of sound
  3. Reflection of Sound
  4. Bouncing of Sound


8. Which of the following is NOT a lever?

  1. Hammer
  2. Screw
  3. Axle
  4. Pulley


9. Characteristics of solid state of matter will NOT include _____.

  1. Fixed shape
  2. Fixed volume
  3. Compression
  4. Density
  5. Please read on Solid State of Matter and Characteristics of Solids here.


10. An example of a mineral acid is _____ acid.

  1. Lactic
  2. Trioxonitrate V
  3. Citric
  4. Amino
  5. You can read on the Physical and Chemical Properties of Acid here.


11. _____ is NOT a drug.

  1. Coffee
  2. Babiturates
  3. Opium
  4. Conifer
  5. Please read on the Meaning and Types of Drugs here.


12. The Standard International Unit for work is _____.

  1. Newton
  2. Watt
  3. Joule
  4. Volt
  5. Please read on Fundamental Quantities and Units in Physics here.


13. Particles that make up matter move faster in _____.

  1. Iron
  2. Ice
  3. Steam
  4. Water
  5. Please read on the Concept of Matter here.


14. _____ is said to occur when vapour pressure equals the atmospheric pressure.

  1. Freezing
  2. Vaporization
  3. Boiling
  4. Melting
  5. Please read on the Physical Properties of Matter. Answer is present here.


15. _____ is a mixture.

  1. Water
  2. Common salt
  3. Limestone
  4. Air
  5. Please read on Mixtures and Types of Mixtures here.


16. Which of the elements is NOT a good conductor of electricity?

  1. Gold
  2. Silver
  3. Copper
  4. Silicon
  5. Please read on the Physical Properties of Metals here.


17. Weightlessness will be experience by a/an _____.

  1. Engineer
  2. Sailor
  3. Astronaut
  4. Pilot
  5. Please read on the Concept of Mass and Weight here.


18. The ratio of work output of a machine to work input is termed _____.

  1. Efficiency
  2. Velocity Ratio
  3. Effort Ratio
  4. Mechanical Advantage

You can attempt Len Academy Questions on various Subjects (with Answers) here.

19. The following are signs of puberty in boys EXCEPT _____.

  1. Wet dreams
  2. Menarche
  3. Sperm Production
  4. Broad Shoulders


20. Beast of burden are animals that are reared for _____.

  1. Skin
  2. Labour
  3. Meat
  4. Milk

Please read on what every Student is expected to know here.

21. The functional unit of the Central Nervous System is the _____.

  1. Brain
  2. Spinal cord
  3. Neurone
  4. Nerve
  5. Please read on the Introduction to the Human Brain here.


22. _____ is a biodegradable material.

  1. Leaf
  2. Copper
  3. Silicon
  4. Tyre
  5. Please read on Waste Management and Types of Wastes here.


23. An enzyme present in saliva is the _____.

  1. Ptyalin
  2. Renin
  3. Pepsin
  4. Trypsin


24. The breakdown of food substance to release energy is termed _____.

  1. Nutrition
  2. Irritability
  3. Respiration
  4. Photosynthesis
  5. Please read on the Characteristics of Living Organisms here.


25. Substances taken medically for physiological set up of the body are called _____.

  1. Minerals
  2. Drugs
  3. Vitamins
  4. Food
  5. The answer is present in this article here.


26. Fertilization in women takes place in the _____.

  1. Oviduct
  2. Uterus
  3. Ovary
  4. Cervix


27. Gaseous exchange occurs in the _____.

  1. Nostrils
  2. Bronchi
  3. Bronchioles
  4. Alveoli


28. A spider belongs to the class _____.

  1. Crustacea
  2. Insecta
  3. Myrapoda
  4. Arachnida


29. Which of the following organism is NOT a mammal?

  1. Whale
  2. Mouse
  3. Shark
  4. Bat


30. An injury that occurs to a muscle is called _____.

  1. Cramp
  2. Dislocation
  3. Fracture
  4. Sprain


You can Attempt Len Academy Examination Questions for Basic Science JSS3, 2nd Term here.

You can attempt Len Academy Basic Science Science Questions for JSS1, 2nd Term here.

You can read various articles on Basic Science here

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Amazing facts in Basic Science

Of all animals, mosquitoes hold the record of killing most humans annually. They are responsible for the deaths of 725,000 - 1,000,000 persons yearly

Antibiotics fights and kills bacteria. However, they do nothing to a virus

All insects have six legs. However, dragonfly has six legs but can't walk

The chin is defined as the protruding part of the face below the mouth, formed by the apex of the lower lip. It is shown below:

Chin - Len Academy

Interestingly, humans are the only animals with chin

Cranberries - Len Academy

Ripe cranberries will bounce like a ball. For this reason, they are nicknamed 'bounceberries'. They will also float in water

Tomatoes and Avocados are fruits, not vegetables

Sweat in itself doesn't smell. The smell that accompanies sweat is actually caused by the presence of bacteria on your skin. This bacteria breaks the sweat coming out of your sweat pores down into acids, thus making it smell.

Deodorants contains alcohol and are antibacterial. They work by killing the bacteria that makes sweat smell

Chewing aspirin during a heart attack may be a life saver. This is true because the drug inhibits platelets from forming a clot that can block an artery of the heart, thus stopping a heart attack

The kneecaps of newly born babies are not made of bone. Rather, they are little bits of cartilage which ossifies (turns from cartilages to bone) from age 2 to 6

Ice cubes - Len Academy

Ice cubes made with fresh water are white in color while those made with boiled water are crystal clear


Matter is composed of particles which can be:

  1. Tightly packed together (as seen in solids).

  2. Loosely packed together (as seen in liquids).

  3. Completely separated (as seen in gases).

The movement of the particles of matter is a function of the overall kinetic energy present in them. You can think of kinetic energy as energy in motion.

An increase in the particles' vibrational, rotational or translational motion will imply an increase in temperature while a decrease in the particles motion (vibrational, rotational and translational) will mean a decrease in temperature. Based on this knowledge, we can therefore define temperature as the measure of the average kinetic energy possessed by the particles of matter.

You can read on the concept of matter here

Intelligence Quotient (IQ) is a score derived from a set of standardized tests developed to measure a person's cognitive abilities in relation to their age group.

IQ may also be defined as the ratio of mental age (MA) to chronological age (CA) multiplied by 100.

Below are some formulas pertaining Intelligence Quotient:

  • IQ = MA x 100 ÷ CA

  • MA = Mental age

  • CA = Chronological age

  • IQ above 100 = Brilliance

  • IQ that equals 100 = Average

  • IQ below 100 = Below Average

Human Brain Gyri and Sulci - Len Academy

Among all organisms in the universe, the human brain is the most developed. This highly developed brain present in humans is the biggest factor that makes them unique from every other organism on earth.

According to research, the more folds a brain has, the more intelligent the organism possessing it will become. To this end, humans have brains with the greatest number of folds (or bumps) called gyri and grooves (or indentations) called sulci.

Please read on the uniqueness of man here.

Waste Management can be defined as the process of collecting, processing, recycling and controlling any material considered as waste.

Improperly disposed waste litters on road sides, in land fills, gutters and ditches. They are generally bad for the following reasons:

Wastes can be classified into various types. These are:

  • Biodegradable waste

  • Non-Biodegradable waste

  • Refuse

  • Sewage

  • Recyclable waste

  • Electronic waste

  • Green waste

  • Biomedical waste

  • Metabolic waste

  • Radioactive waste

  • Chemical waste

  • Animal product waste

Please read the explanations on the classification of wastes here