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Interesting Facts for Students
Notable Points for Students
Planets can be categorized based on their composition. These include:
1. Terrestrial or Rocky Planets: They are mercury, venus, earth and mars. They are called terrestrial or rocky planets for the following reasons:
They have a rocky and compact surface.
They have no rings around them.
They have a few natural satellites.
They rotate slowly around their axis.
2. Gas or Jovian Planets: They include jupiter, saturn, uranus and neptune. They have the following features:
They are called jovian planets because they are bigger in size when compared to earth.
They are composed mainly of hydrogen and helium gas, hence the name 'gas planets' or 'gas giants'.
They rotate rapidly.
They have many satellites.
They have rings around them.
Please read more on the classification of planets here.
Geography
The following rules are required for a body to become classified (or regarded) as a planet:
It must orbit the sun.
It does not orbit another planet. This means that it must not be a satellite.
It must have sufficient mass which accounts for its self-gravity.
It must assume a nearly round shape.
Please read on the planets of the solar system here.
Geography
The Standard International (SI) unit for density is kilogram per cubic metre (Kg/m3).
The table below shows various substances with their densities:
|
Substance |
Density (Kg/m3) |
|
Helium |
0.179 |
|
Air (1atm and 20oC) |
1.20 |
|
Bamboo Wood |
400 |
|
Ethanol |
810 |
|
Methylated Spirit |
800 |
|
Benzene |
900 |
|
Paraffin Wax |
900 |
|
Ice |
920 |
|
Water (Fresh Water) |
1000 |
Physics
Force can be balanced or unbalanced.
When forces from different directions act on an object and consequently bring about the object's motion, then such forces are unbalanced.
Conversely, if theses forces bring about zero motion (static position or no movement) on the object of reference, then it's a balanced force.
In summary,
An apple hanging on a tree (without any form of movement) has a balanced force.
An apple falling from a tree has an unbalanced force.
Physics
Below are characteristics of gymnosperms:
Their seeds have cones that protect them.
Sepals and petals aren't present in their cones.
Stigma and style are absent.
They do not produce fruits. Only seeds are formed.
Companion cells are absent.
Sporophyll form the cones.
Anther and filament are absent.
The ovules are not present in the ovary.
Gymnosperms do not possess flowers.
Please read on the anatomical differences between gymnosperms and angiosperms here
Agricultural Science
Below are the physical properties of metals:
They exist in solid state.
The have high densities.
They are good conductors of heat and electricity.
The have the ability to be polished, to glow, sparkle and reflect light.
They can be bent, flattened and made into sheets called foils.
They can be drawn into wires.
Iron undergoes magnetism while most metals are poorly magnetized.
They typical have high melting point.
They generally have high boiling point.
With the exception of lithium, sodium and potassium, most metals are generally hard.
They have the ability to make sound when in contact with other objects or metals.
Please read details on the physical properties of metals here
Chemistry
John Dalton is an English chemist who brought clarity into the composition of matter and the basis for their chemical reactions.
Below are Dalton's Atomic Theory:
All matter consists of tiny indivisible particles called atoms.
Atoms of the same element are identical to each other in every aspect because they have the same shape and mass, while atoms of different elements are different in all respect.
Atoms are indestructible and can neither be created nor destroyed.
Atoms of different elements can combine with each other in simple whole number ratios to form compounds.
Atoms of the same element share similar physical and chemical properties. They can also combine in more than one ratio to form two or more compounds.
Meanwhile, understand that the above theories of John Dalton had been modified.
Please read on Dalton's atomic theory and its modifications here
Chemistry
All human beings are entitled to a fundamental, inalienable, non-discriminatory, indivisible and universal rights which is termed human rights.
These fundamental rights of humans will allow each and every one of us to live in freedom, equality, fairness, respect, peace and justice.
There is neither discrimination nor distinction in human rights. It doesn't matter if you are are white or black, a Nigerian or a Chinese, male or female, physically challenged or physically complete, rich or poor, yoruba, igbo or hausa, christian, muslim, hindu or an atheist.
The point is: 'we all share the same human rights'.
Civic Education
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It is believed that the amazon rainforest is responsible for producing about 20% of earth's oxygen.
Geography
Most element in their pure state exists physically in different forms. For instance, pure carbon can exist as both diamond and graphite. This phenomenon is called allotropy
Chemistry
The fastest animal on land is cheetah. It can reach a maximum speed of about 113km per hour.
Physics
It is believed that bookkeeping is the only English word to contain three sets of double letters repeatedly
Accounts
The earth is spherical in shape and we live on its surface. The middle part of the earth or (center of the earth) is actually hotter than the sun
Geography
There are actually three countries in the world that are present inside another country. These are:
Geography
With regards to numbers,
Forty is the only number that is spelt with letters arranged in alphabetical order
One is the only number that is spelt with letters arranged in descending order
Mathematics
If you pour a handful of salt into a full glass of water, the water level will go down rather than overflowing the glass.
Similarly, if you mix half liter of water and half litre of alcohol, the total volume of the liquid will be les than one litre
Chemistry
Total Academic Facts (228) Paged
Page (12 of 12)
Test Your Knowledge
The _____ functions to remove excess heat from the refrigerator.
A. Evaporator
B. Compressor
C. Condenser
D. Expansion Valve
E. Thermostat
F. Defrost System
Basic Technology
A fluid or gas that runs through the compartments of a refrigerator is termed _____.
A. Water vapor
B. Liquid vapor
C. Frost
D. Refrigerant
E. Compressed water
F. Evaporated water
Basic Technology
Which of the following is not a branch of environmental geography?
A. Physical Geography
B. Hazards
C. Political Ecology
D. Environmental Perception
E. Landscape Studies
F. Energy and Resource Geography
Geography
The feeding of five thousand men with five loaves of bread and two fishes paved way for Jesus' teaching on _____.
A. The sermon on the mount
B. The living bread
C. Prayer, fasting and almsgiving
D. The prodigal son
E. The good samaritan
F. Giving
CRS
According to Christianity, Jesus Christ suffered for us all. As a result, Christians do not have to suffer on earth.
A. True
B. False
CRS
A one-man business is termed _____.
A. Proprietorship
B. Sole Proprietorship
C. Individual Entrepreneurship
D. Sole Trader
E. All of the Above
F. None of the Above
Business Studies
The ideal pH for the optimum growth of most agricultural crop is between _____.
A. 1 – 3.5
B. 4 – 5.5
C. 6 – 7.5
D. 8 – 9.5
E. 10 – 11.5
F. 12 – 13.5
Agricultural Science
People who go about their lives by raising and herding livestock such as cattle, sheep and goats are said to practice _____.
A. Pastoralism
B. Pasturalism
C. Herding
D. Herdsmen
E. Animalism
F. Anime Farming
Agricultural Science
A value that belongs naturally to someone is said to be _____.
A. Self
B. Neutral
C. Humane
D. Positive
E. Negative
F. Intrinsic
Civic Education
A traffic offender mandated to clean the roads is said to have carried out community service.
A. True
B. False
Civic Education
Which of the following is a fundamental quantity?
A. Luminous Intensity
B. Area
C. Volume
D. Velocity
E. Concentration
F. Acceleration
Physics
An object at rest will temporarily stay in its state of rest, and if the object is in uniform motion, it will temporarily move in a straight line, unless an external force acts upon it.
The above statement refers to Sir Isaac Newton's first law of motion.
A. True
B. False
Physics
_____ is defined as a gradual and sustained rise in price level of goods and services in relation to their availability.
A. Basis Point Rate
B. Hike Rate
C. Elastic Supply
D. Elasticity of Price
E. Price Inflation
F. Aggregate Supply
Economics
Which of the following is not a function of the wholesaler?
A. They distribute goods
B. They store goods
C. Specialization of goods
D. They bring about price variability in goods
E. They act as shock absorbers during the movement of goods
F. Packaging of goods
Business Studies
The wholesalers can bring about an economy of scale.
A. True
B. False
Economics
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
Basic Science
The vector for yellow fever is _____.
A. Aedes Mosquito
B. Female Anopheles Mosquito
C. Plasmodium
D. Flavivirus
E. Black Fly
F. Bacillus Anthracis
Basic Science
