"Moon Phases" PPT courseware

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"Moon Phases" PPT courseware

Part One: Moon Phases and Formation

1. Moon phases:

The various phases of the moon.

2. Reasons for the formation of moon phases

Our students here should pay attention to a few points when doing experiments:

1. It requires two people to cooperate, one to experiment and the other to supervise. The experimenter holds the ball in his left hand (the white side of the ball must face the direction of the sun), draws with his right hand, and completes the moon phases in the eight positions A-H in the book activity.

2. Finish and then switch over.

3. After the experiment, you can communicate with the classmates in the group.

Reasons for the formation of moon phases

1. The moon itself does not emit light, it only reflects sunlight.

2. The relative movement of the sun, earth, and moon causes changes in the relative positions of the three.

The relative positions of the sun, earth and moon change regularly within a month, and the shape of the part of the moon illuminated by sunlight seen by people on the earth also changes regularly, resulting in changes in the moon phases.

Moon Phase PPT, Part 2: Moon Phase Changes and Lunar Calendar

The moon phase goes from new moon, to full moon, and back to new moon again. This cycle lasts on average 29.53 days and is called the synodic month.

The lunar months in our country are determined based on the synodic moon.

Shuo: the first day of the lunar calendar

Hope: the fifteenth or sixteenth day of the lunar calendar

Thinking: Have you ever noticed that although the moon's surface changes in waxing and waning, the face of the moon itself does not change. That is to say, the moon always faces the earth with the same face, and the back of the moon cannot be seen from the earth. So why doesn't the moon turn its head?

It turns out: the moon's rotation period (or speed) is the same as its revolution period (or speed) around the earth, so the side of the moon facing the sun has never changed. Although the phases of the moon we see are constantly changing, in fact we only see the same side of the moon.

Moon Phase PPT, Part 3: Consolidation Exercises:

1. Moon phases: various phases of the moon.

2. Reasons for the moon phase changes: The moon itself does not emit light, and the relative positions of the sun, the earth, and the moon change regularly.

3. The law of moon phase changes:

4. The synodic month is __________ and has _______ days on average.

5. The festivals determined according to the lunar calendar are ________.

6． The following are the correct combinations of moon phase shape, moon phase name, and appearance time ( )

A. New moon, third and fourth day of the lunar month

B. Last quarter moon twenty-two and twenty-three

C. First quarter moon, seventh and eighth day of the lunar month

D. Last quarter moon twenty-two and twenty-three

Keywords: Zhejiang Education Edition seventh grade science PPT courseware for the second volume free download, moon phase PPT download, .PPT format;

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"Moon Phase Changes" Universe PPT teaching courseware:

"Moon Phase Changes" Universe PPT Teaching Courseware Part One: Moon Phases We may observe changes in the moon in the sky. The various shapes that appear during the moon's waxing and waning changes are called moon phases. Draw what we observed on several round pieces of paper of the same size.

"Moon Phase Changes" Universe PPT download:

"Moon Phase Changes" Universe PPT Download Part One: Situation Introduction On a dark night, there is a bright moon in the sky. Is the shape of the moon we see the same every night? In January, it keeps repeating the circle and waning, but the position of the waning is sometimes on the left, sometimes on...

"Moon Phase Changes" Universe PPT:

"Moon Phase Changes" Universe PPT Part One Contents: Review of the previous section 1. How much are the diameter, volume, mass, and gravity of the Moon compared to the Earth? 2. What are the four stages of human exploration of the moon? 3. What are the main terrain features of the moon? April..

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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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