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

What is science? Qualities of a scientist 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 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

Academic Questions in Basic Science

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Which of the following diseases is associated with river blindness?

  • A. Anthrax

  • B. Lawnmower Disease

  • C. Onchocerciasis

  • D. Devil's Crunch

  • E. Trypanosomiasis

  • F. Tularemia

The vector for yellow fever is _____.

  • A. Aedes Mosquito

  • B. Female Anopheles Mosquito

  • C. Plasmodium

  • D. Flavivirus

  • E. Black Fly

  • F. Bacillus Anthracis

The bones of the head and face make up the skull. These bones are _____ in number.

  • A. 12

  • B. 14

  • C. 16

  • D. 18

  • E. 20

  • F. 22

Bacteria are not a constituent of our environment.

  • A. True

  • B. False

Below are types of drugs. Which of these is considered as pain killers?

  • A. Stimulants

  • B. Depressants

  • C. Opiods and Morphine Derivatives

  • D. Hallucinogens

  • E. Anabolic Steroids

  • F. Cannabinoids

Which of the following statement is false concerning drugs?

  • A. Drugs can be inhaled

  • B. Drugs can be injected directly into the bloodstream 

  • C. Drugs can be eaten

  • D. Drugs exist exclusively in the forms of tablets and syrups

  • E. Drugs can be placed under the tongue

  • F. Drugs can be taken with water or another liquid

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

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.

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Amazing facts in Basic Science

According to scientific research, if the first tear drop comes from the right eye, it’s tears of joy. If it comes from the left eye, then it is as a result of pain

Dentistry is the oldest profession in the world. This is considered true because a research conducted by the University of Bologna, Italy on a 14,000-year-old skull found that one rotten tooth in the jaw had been deliberately scoured and scraped with a dental tool

Scientific research has it that the human nose can distinguish more than a trillion different odors

Tiger fur and skin - Len Academy

Tigers have striped fur. So also is their skin

Red-Billed Quelea - Len Academy

The most common wild bird in the world is native to Africa, and it's the red-billed quelea with a population estimated to be around 1.5 billion

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

Notable points in Basic Science

We have six classes of food. These are:

  1. Carbohydrates

  2. Proteins

  3. Fats and Oils

  4. Vitamins

  5. Mineral Salts

  6. Water

In humans, roughages are not classified as one of the classes of food. This is so because they aren't digested. Instead, roughages facilitate the movement of bowels in the large intestine (colon); and for this reason, they can become useful in treating constipation.

Food refers to anything that is ingested by living organisms, giving them nutrients and thus enabling them to stay alive.

As an instance, 99% of a panda's diet is bamboo. In this case, bamboo is considered as food to a panda since it provides a source of nutrient and keeps it alive. This is shown in the image below:

Panda eating bamboo - Len Academy

Please read more on food here

The only process in nature that actively enriches our atmosphere with oxygen is photosynthesis. Every other process like respiration, burning and combustion takes away oxygen from it. In addition, they introduce carbon(IV)oxide (CO2) into the atmosphere.

Photosynthesis is also the only process that takes away carbon(IV)oxide (CO2) from the atmosphere.

Photosynthesis is defined as a process by which green plants manufacture food by utilizing carbon(IV)oxide and water in the presence of sunlight.

Oxygen is given off as a by-product of photosynthesis. In regards to this, it is recommended that each person plants a tree.

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