"Moon Phase Changes" Universe PPT Courseware 4

Description

"Moon Phase Changes" Universe PPT Courseware 4

The various shapes that appear during the moon's waxing and waning changes are called moon phases.

Sort moon phases

Let’s post the “moon phase” together. Arrange them in order of time and paste the cut out moon phases into the corresponding round pieces of paper on the blackboard.

Do we think there is a pattern to the phases of the moon? What are the rules?

new moon → first quarter moon → full moon → last quarter moon → waning moon

new moon first day of lunar calendar

First quarter moon, seventh or eighth day of the lunar calendar

Full Moon, the 15th day of the lunar calendar

Last quarter moon, 22nd or 23rd lunar calendar

The moon phases change, and the changes are regular. In the first half of the month, the area of ​​the bright side of the moon that people see gradually becomes larger, until the full moon, with the bright side on the right; in the second half of the month, the area of ​​the bright side of the moon that people see gradually becomes smaller, until the full moon, with the bright side of the moon on the left.

The change pattern of the moon phase in a month is (the first half of the moon changes from waning to round, and the second half of the moon changes from round to waning)

Simulate moon phase changes

The moon is a non-luminous, opaque sphere, and the moonlight we see is the light it reflects from the sun.

As the moon moves around the earth, the relative positions of the sun, earth, and moon change regularly throughout the month.

The moon phase is actually the part of the moon illuminated by the sun that people see from the earth.

Due to different observation angles, the size and direction of the bright side of the moon seen are also different.

We can do a simulation experiment to observe.

Simulation experiment:

1. The screen acts as the sun, and the sunlight shines parallel to it.

2. A student acts as the moon, holding a ball on his head. The white side of the ball faces the blackboard and moves counterclockwise around the earth.

3. The 8 students used it as the earth, stood in their respective positions, faced outside the circle, observed the phases of the moon when the moon passed by, and used chalk to paint the bright part on the record card.

4. After the simulation is completed, the group will discuss the completed moon phase diagram and your findings.

Kind tips

1. Students who are on the moon should move a little slower and stop at the fixed position. After the students on the earth have recorded it, they can move to the next position.

2. Students on Earth face outside the circle and look straight ahead. When the moon passes directly in front, record the white part they see.

3. After the moon orbits the earth once, it will circle again, and students on the earth will do a review.

To observe the moon phases during the day, we need to pay attention to:

1. Prepare two pieces of recording paper, draw 15 circles of the same size, and mark the direction.

2. Observe in the evening after school every afternoon and in the early morning before school in the morning, and record the moon phase in the sky, the old calendar time of the moon phase, the position of the moon phase, and the position of the sun.

The concept of moon phases:

The various shapes that the moon appears during its waxing and waning changes.

Simulate moon phase changes

1. The blackboard in the classroom represents the sun, and two circles are drawn in the middle of the field. Several students stood on a small circle to represent observers on the earth; one student held up a half-painted basketball to represent the moon and rotated it around the large circle to represent the moon's movement around the earth for one month.

2. Let the bright side of the "moon" always face the "sun", which means that only half of the moon can be illuminated by the sun.

3. Carefully observe the "lunar phases" of the moon as it moves to different positions.

fill in the blank

1. We observe that the moon in the sky has various shapes that appear during the waxing and waning process. We call it _______.

2. The moon is a _______, _______ sphere, and the moonlight we see is actually _______ reflected by it.

3. If we observe from different angles on the earth, the phases of the moon we see will be different ________ and ______.

4. The changing pattern of the moon phases is that the first half of the moon ______ and the second half of the moon _______.

choose

1. The various shapes that appear on the moon during its waxing and waning changes are called ( ).

A. Moon phase B. Moon appearance C. Moon

2. The time for one cycle of moon phase changes is approximately ( ).

A. One day B. One month C. One year

3. The time when the moon phase is at its roundest is approximately every month of the lunar calendar ( ).

A. Thirty B. Fifteenth or sixteenth C. Eighth day

4. The pattern of moon phase changes in the first half of the lunar calendar is ( ).

A. From missing to round B. From round to missing C. From missing to round and then to missing

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For more information about the "Cosmic Moon Phase Changes" PPT courseware, please click the Universe ppt Moon Phase Changes ppt tag.

"Moon Phase Changes" Universe PPT teaching courseware:

"Moon Phase Changes" Universe PPT Teaching Courseware Part One: Moon Phases We may observe that the moon in the sky has waxing and waning changes. 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: 2024-10-03

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

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