What is the fizz in fizzy drinks? The fizz in fizzy drinks comes from carbon dioxide, which is why the process is called carbonation, and they are called carbonated beverages. A lot of drinks have a natural fizz. Beer has fizz and bubbles because it is made with yeast. The yeast eats sugar and releases […]
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What is continentality? Continentality is the condition of being in the center of a large landmass, which makes summers much hotter and winters much colder than other places. Anybody who lives in the center of a large landmass will notice that the temperatures in the summer are higher and the temperatures in the winter are
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How do the phases of the moon happen? The phases of the moon happen because only one side of the moon faces the Earth at any one time and as the moon rotates we can’t see the lit side. This question was surprisingly difficult for me to get my head around. For the longest time,
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How do glow sticks work? Glow sticks work because some chemical reactions can produce photons of light. The process is called chemiluminescence and several animals and insects use it to produce light. You can buy glow sticks from a lot of stores and they are not very expensive. They are usually a tube that is
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Soap or hand sanitizer? Soap removes germs and bacteria by killing and then washing them away, while hand sanitizer kills them. Soap and hand sanitizer deal with bacteria and things like that in different ways. One of them is more successful than the other. Let’s have a look at them both. How does soap remove
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What is the water table? The water table is a layer between soil that is not saturated with water and soil that is completely saturated with water. The water table is at different depths depending on the makeup of the ground and the topography. It is usually at the bottom of the soil layer, just
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What is Boots theory? Boots theory is a theory that poor people have to buy low quality products that don’t last very long. This means they have to replace them often and end up spending more in the long run than they would have if they had been able to buy a more expensive product.
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What is escape velocity? Escape velocity is the minimum speed an object needs for it to be able to escape the gravitational pull of a celestial body. Everything in the universe has gravity. Even dark matter has gravity, which is how astronomers know it is there even though they can’t see it. The gravity of
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Why do so many borders in Africa have straight lines? So many countries in Africa have borders with straight lines because there are no landmarks to define the borders in those areas. Along with that, nearly all of the borders were created by the colonial powers. If you look at the borders between countries in
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How does sunscreen work? Sunscreen works by either reflecting the ultraviolet rays back up, or by absorbing the ultraviolet rays. When we go out into direct sunlight, we are coming into a lot of energy that the sun is sending our way. The sun releases energy as electromagnetic waves in a whole range of wavelengths.
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