Mars is the only other planet in the solar system where there is some chance that life exists. On top of that, there seems to be a clear plan for colonizing Mars in the coming years by us humans. Let’s discuss some similarities and differences between Earth and Mars to get a clear picture of …
The sky in the day appears blue. Why do we only see the different shades of blue and not the other colours? Why the Sun appears reddish during sunrise and sunset and yellowish during the day? All these things can be explained by just one phenomenon. What is that? Let’s find out. Why is the …
Why is the sky blue? | Scattering of light | Rayleigh scattering Read More »
Tides are the rise and fall of the ocean level. The gravitational pull of the Sun and the Moon, and the rotation of the Earth are the two causes of tides. Below discussed are the different types of tides. One thing that must be noted is that the classification of tides may change from source …
Tides | Different types of tides | Causes of tides Read More »
The percentage of oxygen in the air is 20.95%. It is the second most prevalent gas in the atmosphere. Nitrogen is the most prevalent gas and forms 78.08% of the atmosphere. Rest is other gases mainly Argon (0.9340%) and Carbon dioxide (0.0410%). Oxygen at high altitudes We have often heard from people that as we …
Percentage of oxygen in the air | oxygen at high altitudes | Ozone Read More »
Many people think Summers occur when the Earth is closer to the Sun. This is not true. In fact, when there are summers in the Northern Hemisphere, the Southern Hemisphere experiences Winter and vice-versa. So what causes the four seasons? Let’s read. The seasons on Earth (or any other planet) occur due to its axial …
The four seasons on Earth | Why the Earth has seasons? Read More »
The South Pole is colder than the North Pole. Why? let’s read. These are the three main reasons why the South pole is colder than the North pole. The polar regions (the North Pole and the South Pole) are colder than the rest of the world because of 4 reasons – Some interesting facts about …
Why is the South pole colder than the North pole? Read More »
There are different types of rocks that form the Earth’s crust. On the basis of origin, these rocks can be classified as- Types of rocks Igneous rocks Cooling and solidification of magma (molten material inside the Earth) form the igneous rocks. Igneous rocks have a crystalline structure and a non-layered appearance. These rocks do not …
Types of rocks | Igneous, Sedimentary, Metamorphic Read More »
A volcano is an opening in a planet’s crust through which hot lava, tephra, and gases come out from a magma reservoir. Magma refers to the molten or semi-molten rocks inside a planet’s surface. There are 3 types of volcanoes classified based on activity. Active Dormant Extinct Active volcanoes are those which erupt frequently. Dormant …
Types of volcanoes | Some infamous volcanic eruptions Read More »
Earth’s atmosphere is divided into 5 different layers. These layers are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The layers of the atmosphere are basically divided on the basis of temperature variation with altitude. Let’s dive deep and learn a few things about each layer. Troposphere Stratosphere Why temperature rises with elevation in stratosphere? The …
Layers of the atmosphere | Troposphere, Stratosphere, Mesosphere, etc. Read More »
Latitude and longitude are used to find the precise location of a point on Earth’s surface. Both latitude and longitude are measured in degrees which are divided into minutes which are further divided into seconds. Latitude The latitude of a point on Earth’s surface is the angle the normal from that point makes with the …
Latitude and longitude, temperature variation with latitude Read More »
