"Solar System" PPT courseware download

Description

"Solar System" PPT courseware download

Part One: Composition of the Solar System

The eight major planets, asteroids, comets and other celestial bodies revolve around the sun in a certain orbit from west to east to form the solar system.

The central object of the solar system is the sun: the mass of the sun accounts for 99.86% of the total mass of the solar system.

Planets and their satellites

A planet is a spherical body much smaller than the sun that orbits in the same plane. Forms of planetary motion: rotation and revolution around the sun.

Satellites are spherical bodies that orbit planets.

In the early 17th century, Galileo used his homemade astronomical telescope to reveal the mystery of the solar system for the first time.

Solar system PPT, part 2: eight planets

Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune

Memory method:

The usual notation is to string together the first characters of the names of the eight planets: water, metal, earth, fire, wood, earth, sky and sea.

There is another way of notation: Although it is a bit far-fetched, the memory is preserved for a long time: the crystal ball was burned by fire and the wood turned into earth and became the end of the world.

Water: Mercury Crystal: homophonic for "gold", referring to Venus

Ball: Earth Huo Shao Mu: "Fire" refers to Mars,

“Wood” refers to Jupiter and turned into earth: “Earth” refers to Saturn

Tianya Haijiao: "Heaven" refers to Uranus, "Sea" refers to Neptune

Solar system PPT, part 3: asteroids and comets

The mass and volume are much smaller than the large planets. The planets orbiting the sun are asteroids.

1. Location: Between Mars and Jupiter

2. Characteristics: small size, small mass, various shapes, numerous quantities

Elliptical orbit, revolving around the sun, does not emit light on its own

3. Composition: Some are stone, some are carbon and iron

4. Quantity: about 500,000 pieces

5. The four first asteroids discovered:

Ceres, Vesta, Pallas, Juno.

Solar system PPT, part 4: comets

Can you draw a diagram of the motion of a comet around the sun?

Comets move around the sun in long elliptical orbits from east to west;

The comet's tail is always oriented away from the sun;

When encountering the solar wind, the closer to the sun, the longer the comet's tail;

If a comet is captured by a planet while orbiting the sun, it will also have a violent impact. In 1994, comet Shoemaker-Levy 9 hit Jupiter at a speed of 210,000 kilometers per hour. After the impact, broad dust clouds rose from the surface of Jupiter, and high-temperature gas rushed to an altitude of 1,000 kilometers, leaving impact traces on Jupiter the size of the Earth.

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For more information about the "Solar System" PPT courseware, please click the Solar System ppt tag.

"Solar System" universe PPT teaching courseware:

"Solar System" Universe PPT teaching courseware Part One: Review of the previous section 1. When do solar and lunar eclipses generally occur in the lunar calendar? What moon phase? 2. What are the types of solar and lunar eclipses? 3. Try to explain the reasons for the solar eclipse in your own words. 4...

"Solar System" universe PPT download:

"Solar System" Universe PPT download Part 1: Introduction of new lessons In addition to the earth and the moon, what other celestial bodies do we know that are moving around the sun? What are the characteristics of these celestial bodies? How are they arranged? ... ... ... Solar system PPT, second...

"Solar System" Universe PPT:

"Solar System" Universe PPT Part One Content: Understand that the solar system is centered on the sun, including the eight major planets that revolve around it (including satellites that revolve around the planets), dwarf planets, and small celestial bodies (including asteroids, meteors, comets, etc.) The system is called...

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Update Time: 2024-11-24

This template belongs to science courseware Zhejiang Education Edition Seventh Grade Science Volume 2 industry PPT template

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