What is fog?
Tell your baby: Fog is a meteorological phenomenon that we often see and is also very concerned. Fog in our country often occurs frequently in the months from late autumn to late spring, the most and strongest in the winter months. If you pay attention, you will see that there is often fog in the early morning or evening. Fog is a phenomenon in which water vapor in the atmosphere condenses into very small water droplets that float in the air and reduce our visibility.
You need to know that: Depending on the formation conditions of each type of fog, people divide fog into several types as follows: stratospheric fog, radiation fog, evaporative fog, front fog…. Blindness is a collection of dust and smoke particles suspended in the air, reducing horizontal visibility. Strong fog can reduce horizontal visibility to several hundred meters, even tens of meters like strong fog. Blindness is often caused by local causes such as forest fires and polluted environments. Fog and fog are both dangerous meteorological phenomena. Especially for road, river, sea and air transportation, every year fog causes obstacles and significant losses.
What is a solar eclipse?
Tell your baby: A solar eclipse is a phenomenon where the sun is obscured by the moon when viewed from the earth. A solar eclipse occurs when the Moon passes between the Earth and the Sun and is observed from the Earth, when the Moon completely or partially obscures the Sun. For a solar eclipse to occur, the Sun, Moon, and Earth must lie in a straight or nearly straight line.
You need to know that: There are 4 types of solar eclipses and they are defined by the areas of the Moon’s shadow on the Earth’s surface: total solar eclipse, partial eclipse, annular eclipse, hybrid eclipse. Observing a solar eclipse directly with the naked eye can cause permanent eye damage so observers must be very careful. Note the following things when observing a solar eclipse such as not being observed directly with the naked eye.
How are clouds formed?
Tell your baby: Tiny water droplets or tiny ice particles form clouds in the sky. Because when sunlight shines on ponds, lakes, rivers and seas, the water in these places evaporates and rises. It then condenses and crystallizes into tiny drops of water or ice particles and floats in the air. They are the funny clouds you often see.
You need to know that: Clouds in the sky are sometimes high and low, the high clouds are more than 10km, the low ones are about tens of meters. There are many causes of cloud formation, the main one being the rising of moist air. The volume of these water droplets is very small, they are the components that make up clouds, its average radius is only a few micrometers, but the density is very large, the rate of decrease in the air is very small, can trapped in the air, so it can float in the air and become clouds.
What is a rainbow?
Tell your baby: Rainbow is one of the most beautiful natural phenomena that we can easily observe after heavy rains during the day. Rainbow is a natural optical phenomenon that almost all of us have ever seen. Rainbow is essentially the dispersion of sunlight when refracted and reflected through raindrops. The rainbow actually has many colors, of which the 7 outstanding colors are red, orange, yellow, green, blue, indigo, and purple.
You need to know that: In fact, the rainbow is not a definite object, but a reflection of sunlight through water droplets in the air, this phenomenon is also known as light refraction. Sunlight is a mixture of colors that we cannot detect with our eyes. Only when shined through a glass prism do light rays bend, or refract, to form a continuous band of colors that we call a spectrum. Because red rays are bent the least, then orange, yellow, green, blue and finally purple rays are bent the most.
What is a meteor?
Tell your baby: A shooting star is a flash of light that flies very quickly and trails long across the dark sky, making it very easy for children to see them when they appear. They are a symbol of good luck and they look very nice.
You need to know that: A meteor is a flash of light in the sky, in fact it is not a star falling from the sky but a small stone of the universe, passing through the atmosphere at a very high speed, about 100.000km/ H. The friction of the air instantly heats this stone, which glows and leaves a long streak of light. These rocks are meteorites, they are usually debris from old comets, they can also be metal fragments from asteroids scattered after impact.
What is a lunar eclipse?
Tell your baby: A lunar eclipse is a phenomenon where the moon is obscured by the earth’s shadow in front of the sun’s light, also known as the blood moon, is an astronomical phenomenon when the moon enters the cone of the earth’s shadow, opposite the Sun. Almost every year there are about 4 solar eclipses – lunar eclipses, which is the minimum number of eclipses – lunar eclipses that can occur in 1 year.
You need to know that: A lunar eclipse is one of the easiest astronomical events to watch. Just go out and have a look. You don’t need a telescope or other supporting tools. However, with binoculars and small telescopes, detailed images of the lunar surface can be obtained. There are 3 types of lunar eclipse: Total lunar eclipse, partial lunar eclipse, and penumbral lunar eclipse.
What is thunder?
Tell your baby: Thunder or thunder is the sound caused by lightning and it is a natural phenomenon that we often encounter. Depending on the distance and nature of the lightning bolts, the sound of thunder heard can be a short bar or a long or short loud bass. If you look carefully and listen carefully, you will see that the sound of thunder is often followed by the light of a flash of lightning.
You need to know that: Lightning is an electrical discharge in the atmosphere between clouds and the ground or between clouds of different electrical charges, sometimes occurring in volcanic eruptions or dust (sand) storms. A flash of lightning, followed by a period of thunder, is a phenomenon that clearly describes that the speed of sound is slower than the speed of light. Because of this difference, one can calculate how far a flash of lightning is by measuring the time between seeing the flash of lightning and the sound of thunder being heard.
What is rain?
Tell your baby: Rain is drops of water falling from the sky naturally, sometimes it falls a lot, sometimes it falls a little, whether you like it or not, the water will still fall. You will catch those drops if you put your hand in front of you. Rain has many types: drizzle, showers, hail… Rain is created when different water droplets fall to the Earth’s surface from clouds.
You need to know that: Rain is a form of condensation of water vapor in cold conditions. Rain has forms such as drizzle, showers, hail, other forms such as snow, sleet, dew. Rain is produced when various water droplets fall to the Earth’s surface from clouds. Precipitation plays an important role in the hydrological cycle in which water from the oceans (and other water-containing areas) evaporates, condenses, and forms clouds in the troposphere by cooling, When the clouds are heavy enough, water will fall back to Earth, forming rain, then the water can seep into the ground or follow rivers to the sea to continue repeating the transport cycle.