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:star: Solar system :star: - Coggle Diagram
:star: Solar system :star:
What is it?
What is definition "Solar system"?
The Solar System is about 4.6 billion years old. It formed by gravity in a large molecular cloud. Most of this matter gathered in the center, and the rest flattened into an orbiting disk that became the Solar System. It is thought that almost all stars form by this process. (Wikipedia)
What is Earth's Rotation and Revolution?
- Earth's rotation is the process of rotating the earth on its axis or axis from west to east. the duration of the earth's rotation process is called the rotation time, which takes 23 hours 56 minutes 4 seconds.
- Earth's revolution is the circulation of the earth around the sun. Earth around the sun for 365¼ days. The time of 365¼ or one year is referred to as the time of the earth's revolution. (GIM-BI)
What is The moon of Rotation and Revolution?
- The rotation of the moon on its axis is called the rotation of the moon. The time it takes for the Moon to rotate once is 29.5 days or one month. The moon rotates from West to East. Therefore, we always look at the same side whenever we look at the Moon.
- The moon's rotation around the Earth is commonly referred to as the lunar revolution. The moon circles the Earth in an elliptical orbit. The time it takes to carry out a full cycle of the phases of the moon is 29.5 days or one month. (GIM-BI)
Inner Solar System
Terrestrial Planets
region contains the four planets closest to the sun, all are rocky planets
Mercury
Venus
Earth
Mars
Outer Solar System
Gas giants planets
region contains:
Jupiter
Saturn
Uranus
Neptune
Dwarf planets
Pluto had been called a planet since it was discovered in 1930, but in 2006 astronomers meeting at the International Astronomical Union decided on the definition of a planet, and Pluto did not fit. These small planets are sometimes called plutinos.Here are:
Pluto
Ceres
Haumea
Eris
Makemake
The eight planet of solar system and their characteristics
Mars is a planet under intense study because it shows signs of liquid water flowing on its surface in the ancient past. Today, however, its atmosphere is a wispy mix of carbon dioxide, nitrogen and argon. It has two tiny moons (Phobos and Deimos) and no rings.
Jupiter is the largest planet in our Solar System and spins very rapidly (10 Earth hours) relative to its orbit of the sun (12 Earth years). Its thick atmosphere is mostly made up of hydrogen and helium, perhaps surrounding a terrestrial core that is about Earth’s size. The planet has dozens of moons, some faint rings and a Great Red Spot — a raging storm happening for the past 400 years at least (since we were able to view it through telescopes).
Earth is the only planet with life as we know it, but astronomers have found some nearly Earth-sized planets outside of our solar system in what could be habitable regions of their respective stars. It contains an atmosphere of nitrogen and oxygen, and has one moon and no rings.
Uranus was first discovered by William Herschel in 1781. The planet’s day takes about 17 Earth hours and one orbit around the Sun takes 84 Earth years. Its mass contains water, methane, ammonia, hydrogen and helium surrounding a rocky core. It has dozens of moons and a faint ring system.
Venus was once considered a twin planet to Earth, until astronomers discovered its surface is at a lead-melting temperature of 900 degrees Fahrenheit (480 degrees Celsius). And also, Its atmosphere is thick and contains carbon dioxide and nitrogen. The planet has no rings or moons.
Saturn is best known for its prominent ring system — seven known rings with well-defined divisions and gaps between them. How the rings got there is one subject under investigation. It also has dozens of moons. Its atmosphere is mostly hydrogen and helium, and it also rotates quickly (10.7 Earth hours) relative to its time to circle the Sun (29 Earth years).
Mercury is the smallest planet in our Solar System and also the closest. It rotates slowly (59 Earth days) relative to the time it takes to rotate around the sun (88 days). The planet has no moons, but has a tenuous atmosphere (exosphere) containing oxygen, sodium, hydrogen, helium and potassium.
Neptune is a distant planet that contains water, ammmonia, methane, hydrogen and helium and a possible Earth-sized core. It has more than a dozen moons and six rings.
Video and Quiz of Solar system
Game:
Solar System
VIDEO
Solar System 101 I National Geographic
Assignments
Create an earth model. Using the tools below:
Ping-pong ball, as an analogy for planet Earth.
Flashlight, as an analogy for planet Earth.
Nails and sticks to create an axis of rotation.
Markers, and
Paper and glue.
The complete instructions only at WhatsApp Group !
Due Date April, 7, 2021
Basic Competence
3.11 Memahami system tata surya, rotasi dan revolusi bumi dan bulan, serta dampaknya bagi kehidupan di bumi.
4.11 Menyajikan karya tentang dampak rotasi dan revolusi bumi dan bulan bagi kehidupan dibumi, berdasarkan hasil pengamatan atau penelusuran berbagai sumber informasi.
Learning Objectives
Students be able to identify the characteristics members of the solar system.
Students be able to categorize of the member of solar system by inner planets and outer planets.
Students be able to explain about the earth's rotation and the earth's revolution.
Language Focus
What is the solar system?
What are the objects in the sky?
What are the characteristics of planets?
