"Making a Solar System Model" PPT courseware

Description

"Making a Solar System Model" PPT courseware

learning target

1. Know the order of the stars that make up the solar system and the eight planets, and be able to make a simple solar system model according to a certain proportion.

2. Realize that collecting, organizing and communicating information is a way of scientific learning.

3. Learn to cooperate with others and be able to play your role in cooperation.

What are the characteristics of the distribution of the members of the solar system?

The sun uses its strong gravity to tightly control all the celestial bodies in the solar system around itself, causing them to rotate around itself in an orderly manner.

Make a model

What preparations should be made for making models?

1. The orbits of the eight planets are roughly on the same plane.

2. It is necessary to comprehensively use two sets of data: the distance between the nine planets and the sun, and the equatorial data of the nine planets to build the model.

3. Calculate the size of each simulated planet according to its size ratio. If the simulated size of Mercury is a 0.5 cm diameter sphere as the standard, then the simulated sizes of Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune are 1 cm, 1 cm, 0.7 cm, 14 cm, 12 cm, 5 respectively. cm and 5 cm.

4. According to a certain proportion, process various colored plasticine or other prepared materials into "eight planets".

Why do the planets, comets, and celestial bodies in the solar system keep revolving around the sun?

Because of the action of universal gravitation, the forces are mutual. If two stars with the same mass orbit each other, but the mass of the sun is huge, other stars cannot shake the sun and can only revolve around it.

Why do comets have long tails?

A comet is a celestial body with very strange morphological changes. When it appears in a clear night sky, it has a pointed head and drags a long and bright "tail" like a broom. Under the pressure of the solar wind, the comet head A large amount of gas and dust material escapes outward, forming a long tail. Therefore, the direction of the tail is always away from the sun.

What happened to the shooting star?

Meteors are small objects and dust particles distributed in interstellar space, called meteoroids. They fly into the earth's atmosphere, generate light and heat due to friction with the atmosphere, and are finally burned out into a beam of light. This phenomenon is called a meteor. (If not Burn out and become meteorites). Generally speaking, meteors refer to meteoroids that glow for a short period of time.

What are the rings around Saturn?

The rings of Saturn are beautiful rings composed of countless interstellar materials, tens of millions of small ice crystals, and small meteoroids under the gravity of Saturn.

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Update Time: 2024-11-10

This template belongs to science courseware E-education edition sixth grade science volume 2 industry PPT template

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