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Why is the Sky Blue?

Why is the Sky Blue?
The question of why the sky is blue is one that’s asked often by both kids and adults. To fully understand the answer it’s important to have some knowledge about the Sun. Blue Dust Particles The Sun scatters dust particles around the atmosphere. These dust particles consists of different colors including yellow, red and blue among others. Each of these colors have different wavelengths. Colors like yellow and orange have longer wavelengths. It allows them to go by much more quickly. Blue has the shortest, so it tends to scatter around a lot more. This is the reason why on a sunny day the atmosphere has that hue all around, and that is why the sky is blue. How Sunsets and Sunrises Happen As the day goes by, the blue wavelengths begin to dissipate. When they do the red, yellow and orange...
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Why Do Leaves Change Color in the Fall?

Why Do Leaves Change Color in the Fall?
In order to better understand why leaves change color, knowing exactly something of leaves is required. Without this knowledge, it will be very difficult to know what is going on. Photosynthesis and Chlorophyll First you need to know how plants make food. They use roots to soak in water. They also absorb carbon dioxide from the air. Next the plants use sunlight to convert the carbon dioxide and water into glucose. Glucose becomes the energy the plants use to grow. This process is called photosynthesis. As the process continues a chemical called chlorophyll is activated. This not only aids in the photosynthesis process, but it also makes the leaves green. Why Leaves Change Color When fall approaches, the days will start to shorten. The trees realize this. Knowing that there’s little sunlight,...
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Why is Mars Red?

Why is Mars Red?
After Mercury, Venus and Earth in the solar system, Mars is located at the fourth position away from the sun. As one of the closest planets to Earth, scientists have developed a great interest on this planet. In fact, people find it highly interesting because of its unique composition, structure and characteristics. This growing interest has led to a number of explorations in an effort to find answers to some really good questions about the place. To know why the color of Mars is red, let’s take a closer look at the physical composition of this beautiful planet. How Mars Got Its Reddish Appearance Why is Mars red? According to scientists and experts, the main reason behind the reddish color of this planet is the rich presence of iron oxide. More popularly known as rust, the abundance of this...
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Why is Lava So Hot?

Why is Lava So Hot?
When a volcano erupts most people associate it with hot flowing rocks. To know more facts about lava, some information about volcanoes is also needed. Where the Substance Comes From Most of the Earth’s surface is solid. In some parts however the crust is thin. This allows the molten rock in the Earth to emerge. These come out from volcanoes during an eruption. The volcanoes themselves are formed during the upheavals of the ground. They are made in the same way as mountains, except that their topmost parts are open and allow the liquid to come out. Why the Substance is Hot The deeper parts of the Earth are made up of hot molten rock. These are called magma. As the facts about lava were established, it was agreed upon that magma be called lava when the volcano spews it out. The two of them...
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Why is It Difficult for Many People to See a Meteor Shower?

Why is It Difficult for Many People to See a Meteor Shower?
There are actually several facts about meteor showers that aren’t well known. Being aware of the facts about the phenomenon will also remove myths surrounding it. Why the Showers are Difficult to See There are several reasons why some people have a hard time seeing them. One reason is location. These are bright objects and will stand out against a dark background. If you are looking at a clear night sky, you’ll see them. But if there are city lights around, it’ll be almost impossible. The bright lights will almost certainly drown them out. Another factor is the Moon. It is very bright. The biggest factor is the weather of course. Cloudy skies and thunderstorms can make it almost impossible to see them. Peak Days Important facts about meteor showers that you should also know are their...
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