Why is the sky blue
Sunlight reaches Earth’s atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by the tiny molecules of air in Earth’s atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves.
Why moon changes shape
The Moon doesn’t emit (give off) light itself, the ‘moonlight’ we see is actually the Sun’s light reflected off the lunar surface. So, as the Moon orbits the Earth, the Sun lights up different parts of it, making it seem as if the Moon is changing shape.
Why moon is white in color
The lighter color rocks are usually plagioclase feldspar, while the darker rocks are pyroxene. During the day, the Moon has to compete with sunlight, which is also being scattered by the atmosphere, so it looks white. The Moon is covered in regolith, which is a fine powder. This is often referred to as “Moon dust”.
Why Sun is Important
The sun has extremely important influences on our planet: It drives weather, ocean currents, seasons, and climate, and makes plant life possible through photosynthesis. Without the sun’s heat and light, life on Earth would not exist.
Why Sun is hot
The sun’s heat and light are produced by the process of nuclear fusion in the center of the sun. The sun is made of gas with high pressure causing very high temperatures around 15 million degrees Celsius. The sun is hot and bright because of a process called nuclear fusion.
Why Earth rotates around Sun
Because the amount of gravity exerted by the sun is so much more than the Earth’s gravitational pull, the Earth is forced into an orbit around the sun. The sun’s gravity pulls the Earth toward it the same way it does to all the other planets in the solar system. It is similar to the way the Earth has captured the moon.
What cause Earth’s rotation?
Earth rotates because Sun attracts the earth and thus pulls earth towards it secondly due to earths revolution around sun it tends to go away from sun in direction of the tangent hence a rotational force (torque) acts on earth and it tends to rotate.
Why Water is Blue
The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. The ocean may also take on green, red, or other hues as light bounces off of floating sediments and particles in the water.
What is the true color of water?
While relatively small quantities of water appear to be colorless, pure water has a slight blue color that becomes deeper as the thickness of the observed sample increases. The hue of water is an intrinsic property and is caused by selective absorption and scattering of blue light.
Why Stars Twinkle
The stars twinkle in the night sky because of the effects of our atmosphere. When starlight enters our atmosphere it is affected by winds in the atmosphere and by areas with different temperatures and densities. This causes the light from the star to twinkle when seen from the ground.
Why do starts shine only at night?
During the day our star, the Sun, makes our sky so bright that we cannot see the much dimmer stars. At night, when the sky is dark, the light of the stars can be seen.
