Maxfort class 6 Social science

Name of 16 Mahajanapad:

Kasi,
Kosala,
Anga,
Magadha,
Vajji or Vriji,
Malla,
Chedi or Cheti,
Vamsa or Vatsa,
Kuru,
Panchala,
Machcha or Matsya,
Surasena,
Assaka or Ashmaka ,
Avanti,
Gandhara & Kamboja

Block 14- Parallels and Meridian

Q4). What is the international Date Line?

Ans.
This us an imaginary line on the Earth that roughly follow the 180 degree line of Longitude.
It is exactly Opposite to the Prime Meridian.

Countries lying on the Eastern side of the International Date Line are One day Ahead  of the countries lying on the Western side.

Travel East to West lose one day.
Travel West to East Gain one day.

To Avoid confusion, this line has been drawn in a Zigzag manner so that it does not pass through any country.

Block 14 - Parallels and Meridians

Q3. What are the lines of Longitude?

Ans.
Lines of Longitude are Imaginary Vertical
lines, running North to South. They meet at both the Poles.
*(Why do they call Meridians?)
These lines are called meridians because they join the places that have midday at the same time.

(For a long answer)
Length of all meridians are equal.
There are a total of 360 Longitudes.
That is numbered 0 to 180 degree East in Eastern Hemisphere and 0 to 180 degree West in Western Hemisphere.

Block 14 - Parallels and Meridians

Q2. What are the lines of latitude?

Ans.
Lines of Latitude are the Imaginary Horizontal lines running East to West circling the Earth. These lines are Parallels because they are Parallel to each other and never meets.

(For a long answer answer add these lines)

The lines are shorter towards the Poles.
There are a total 180 latitudes. That is 0 to 90 North in Northern Hemisphere and 0 to 90 South in Southern Hemisphere.

Block 15 - Properties of Air

Q7(A). Filling medicine in the dropper:

When we press the rubber part of dropper , it create low pressure inside the dropper. When we dip it to medicine and release the pressed part.  Medicine flow to high to low pressure as medicine has higher pressure than Inside the dropper.

Block 15- Properties of Air

Q6. How does air pressure helps in sucking juice using a straw?

Ans.
When we sucks liquid through a straw, it creates an area of Low Pressure inside the straw. The pressure around the straw is Higher than the pressure inside the straw, which pushes the liquid into the straw.

Block 15 - Properties of Air

Q4. Why do we not feel the pressure exerted by air around us?

Ans.
Because pressure acts equally on all sides of our body and is internally balanced by our body. So we don't feel the pressure of Air around us.

Block 15 -Properties of Air

Q4. Design another experiment to show that air has mass?

Ans. Take one inflated balloon and one deflated balloon.
Stick them to the either end of the stick.

We see that the inflated balloon is lower than the deflated one.
It proves that inflated balloon has more mass than deflated balloon .

Block 15 - Properties of Air

Q3. How will you prove that air Occupies Space?

Ans. The shape of a Balloon changes when we blow air into it. The air fills the space inside the balloon and causes it to expand and change its shape.

Block 15- Proterties of Air

Q2. How do you know air is around us?

Ans. Earth is covered with a thick layer of Air. Air present all around us, we can feel it by moving our hand and when we walk.

Block 15 -Properties of Air

Properties of Air:

The properties of Air are:
1. Air has weight
2. Air Occupies Space
3. Air exerts Pressure