"Solar and Lunar Eclipses" Universe PPT Courseware 3

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"Solar and Lunar Eclipses" Universe PPT Courseware 3

Discussion: What are the characteristics of a solar eclipse?

Ask the question: What causes a solar eclipse to occur?

The teacher talks about ancient people’s understanding of solar eclipses.

In the long history of the past, due to the limited understanding of solar eclipses, countless myths and legends have appeared, and rulers in different periods have spread and exaggerated various fears out of necessity. Nowadays, the development of science has given people a more realistic understanding of the astronomical phenomenon of solar eclipse. Recorded below are several legends and anecdotes related to solar eclipses.

▲The most popular ancient legend about solar eclipses in most parts of the world is that monsters eat the sun.

▲Every time the Aztecs (Mexican Indians) saw a solar eclipse, women would scream hysterically because they thought it was a sign that the devil was about to come to the world and eat humans.

▲The Scandinavian tribe believes that the solar eclipse is the eclipse of Sirius; the Vietnamese say that the big monster is a big frog; the Argentinians say it is a jaguar; the Siberians say it is a vampire zombie; the Indians say it is Monster.

▲The Ojibwa Indians in the United States will shoot flaming arrows into the sky during a solar eclipse, with the intention of "reigniting" the sun.

Causes of lunar eclipses.

(1) Speculate the cause of the lunar eclipse.

(3) Draw a schematic diagram of the causes of lunar eclipse.

(4) Explain the causes of lunar eclipse based on the diagram.

Discussion: Why are lunar eclipses more likely to occur than solar eclipses? When does a lunar eclipse occur on the lunar calendar?

Operation:

1. Observing the diagram of the solar eclipse occurrence process, I found:

2. Regarding the causes of solar eclipse, our group designed a simulation experiment:

Experimental Materials:

Schematic diagram:

3. Regarding the causes of solar eclipse, our team’s explanation is:

4. I can draw a diagram of a lunar eclipse and explain why it occurs:

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For more information about the "Cosmic Solar and Lunar Eclipses" PPT courseware, please click on the Cosmic PPT Solar and Lunar Eclipse PPT tab.

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Update Time: 2024-11-22

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 2 industry PPT template

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