Time and Direction - Orchids
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About Time and Direction

  • Time is the irreversible sequence of events that occur in the past, present, and future.
  • Directions are used to specify the position of something with respect to another. There are four main cardinal directions used.
  • It is necessary to know about the time and directions for doing daily tasks precisely.
  • Time and directions play an important role in daily life. This concept is about time and direction.
About Time

What Is the Time?

Question 1:

Who and Why Has It Decided To Make a Minute of 60 Seconds Instead of 10 or 100 Seconds?

Answer:

  • Many centuries ago, an ancient civilisation called Babylonian decided to make a minute with 60 seconds
  • The number ‘60’ can be derived by multiplying many different numbers such as (1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60).
  • It becomes easy to tell the exact time using the 60-second minute.
  • Therefore, it was decided to make a minute of 60 seconds.
What is time

Question 2:

Why Are the Total Days in Each Month Not the Same?

Answer:

  • Our calendar system is based on the total number of days the moon takes to complete its lunar phases.
  • This takes 29.5 days to complete from the new moon to the full moon and back to the new moon.
  • This is not an even number; hence the whole year cannot be divided evenly.
  • So, to make it easy to count the months, some months are with a day extra or less.
days in a month

Question 3:

What Is a Leap Year?

Answer:

  • A year is a time required to complete one revolution by Earth around the Sun.
  • Earth takes 365 and 1/4th days to complete a revolution around the Sun.
  • This extra 1/4th day after every four years is counted as one complete day. Hence, every 4 years, we have 1 extra day in the year that is added to February.
  • Hence, in every leap year, we have 29 days in February and 366 days in the year instead of 365,
what is leap year

How To Know Directions?

Question 1:

Why Does the Needle of the Magnetic Compass Always Point to the North?

Answer:

  • A magnetic compass works on the magnetism of Earth.
  • Earth is like a giant magnet that has two different poles.
  • These poles are situated exactly opposite each other.
  • A needle in a compass acts like a tiny magnet and always aligns itself to the north pole of Earth.

Question 2:

How Are All the Places Far Away From Each Other Fitted on a Single Small Map?

Answer:

  • The accurate distances between the places are scaled down proportionately and accordingly represented on the map.
  • For example, 1000 km can be expressed in 1 cm on a map.
  • Also, to represent various places, symbols are used.
  • This makes it easy to represent a large area on a small piece of paper.

Question 3:

What Are the Equator and Prime Meridian?

Answer:

  • The prime meridian and Equator are imaginary lines that divide the Earth into equal halves.
  • The Equator divides it into two equal northern and southern hemispheres.
  • The prime meridian divides Earth into eastern and western hemispheres.
Equator and prime meridian

Question 4:

Why Are Symbols So Important on Any Map?

Answer:

  • Symbols on a map are chosen to represent commonplaces like bus stops, railway stations, footbridges, restaurants etc.
  • These symbols make the map easy to read and understand.
  • Also, a lot of information can be presented in a limited space using symbols.
symbols on map
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