"Shadows in the Sun" Light PPT Courseware 4

"Shadows in the Sun" Light PPT Courseware 4
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Fifth Grade Science Volume 1, Textbook Edition pptx 6 MB
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"Shadows in the Sun" Light PPT Courseware 4

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"Shadows in the Sun" Light PPT Courseware 4

Light source: the sun, the sun is the largest light source on earth

From early morning to dusk, the position of the sun in the sky is constantly changing. Are the shadows under the sun also constantly changing?

1. Has the position of the shadow changed?

2. Has the thickness of the shadow changed?

3. Has the length of the shadow changed?

The pattern of changes in the shadow of an object under the sun throughout the day is:

1. In the morning, the shadow is to the (west), the shadow is (long) and (thin).

2. At noon, the shadow is on the (north) side, and the shadow is (short) and (thick).

3. In the evening, the shadow is on the (east) side, the shadow is (long) and (thin).

1. The direction of the shadow of an object under sunlight changes with the change of the direction of the sun. The shadow is always opposite to the direction of the sun.

2. The length of the shadow of an object under sunlight changes with the position of the sun in the sky. When the sun is at its highest position, the shadow is the shortest, and when the sun is at the lowest position, the shadow is the longest.

3. People have long known to use the changing patterns of shadows of objects under sunlight to measure time.

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For more information about the PPT courseware "Light and Shadow in the Sun", please click on the "Light ppt and Shadow in the Sun" ppt tag.

"Shadows in the Sun" light PPT teaching courseware:

"Shadows in the Sun" Light PPT Teaching Courseware Part One: Introduction of New Lessons Have we ever seen shadows in the sun? Do shadows in sunlight change throughout the day, and how? Today we are going to learn about it. ... ... ... Shadow in the Sun PP..

"Shadow in the Sun" Light PPT download:

"Shadows in the Sun" Light PPT Download Part 1 content: Experimental exploration of the sun: East to South West Shadow: West to North East After observation, we found: Changes in shadow length: long in the early morning, gradually shorter, shortest at noon, then longer, to the sun It is longest in the west near sunset. ..

"Shadow in the Sun" Light PPT:

"Shadow in the Sun" Light PPT Part One: Observing the changes in the shadow of objects under the sun Let us verify our ideas through actual observations. Find a pencil (or a chopstick) about 10 cm long, a smooth wooden board, and a...

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Update Time: 2024-09-07

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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《阳光下的影子》光PPT课件4
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