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Key Points in Academics

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.


Planets of the Solar System - Len Academy

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.


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Sandy soil: Characteristics of sandy soil and ways to make it fertile - Agricultural Science Soil explained with its composition - Agricultural Science Historical background of commerce in Nigeria - Commerce Disadvantages of barter system - Commerce Difference between plant cell and animal cell - Biology Nucleus explained with its structures - Biology Nucleus explained with its types and functions - Biology Organelles of the cell explained with their characteristics - Biology Eukaryotic cell explained with its characteristics - Biology Prokaryotic cell explained with its structure - Biology Characteristics of prokaryotic cell - Biology Concept of cell - Biology Cell theory in biology - Biology Definitions of technology and their explanations - Basic Technology Examples of technology - Basic Technology Forms of technology explained with their differences - Basic Technology Basic tools for economic analysis: Graphs explained with its characteristics and importance - Economics Basic tools for economic analysis: Tables explained with its characteristics and importance - Economics Importance and limitations of ecological pyramid - Biology Functions of the executive arm of government - Government Consequences of dishonesty - Civic Education Protists explained with their characteristics - Biology The Supremacy of God - CRS Supremacy of God - CRS Lessons learnt from God's supremacy - CRS Importance of values - Civic Education Values and Norms explained - Social Studies What are norms? Types of norms - Social Studies Differences between values and norms - Social Studies Gas laws in chemistry - Chemistry

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Questions for Student

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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