Fifth Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 2
Third Grade Science Volume 2, Textbook Edition
Science Edition for Sixth Grade Science Volume 1
Third Grade Science Volume 1, Textbook Edition
Fourth Grade Science Volume 2, Textbook Edition
Fourth Grade Science Volume 1, Textbook Edition
Qingdao Edition Fourth Grade Science Volume 2
Hunan Education Edition Fourth Grade Science Volume 1
E-education edition fifth grade science volume 1
E-education edition fifth grade science volume 2
Qingdao Edition Fifth Grade Science Volume 2
Fourth-grade science volume 2 of the E-education edition
Fifth Grade Science Volume 2, Textbook Edition
Zhejiang Education Edition Seventh Grade Science Volume 2
E-education edition third grade science volume 2
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Category | Format | Size |
---|---|---|
Fifth Grade Science Volume 1, Textbook Edition | pptx | 6 MB |
Description
"Light and Shadow" Light PPT download
Part One: Situation Import
Do students know what game this is?
What are the conditions for the production of hand puppets and shadow puppets?
Light and Shadow PPT, Part 2: Knowledge Exploration
Light source, occlusion, and screen are the conditions for shadow generation (the occlusion must be between the light source and the screen).
1. What is a light source?
Objects that can emit light by themselves, such as lamps and light tubes, are called light sources.
Light sources such as candles, fireflies, and fluorescent lamps emit their own light instead of reflecting light from other objects.
2. Characteristics of shadow changes
Activities
1. Change the position of the light source
2. Change the distance between the light source and the obstruction
3. Change the shape of the side of the object
Light and Shadow PPT, Part 3: Summary of this Lesson
1. Conditions for shadow generation.
2. An object that can emit light by itself and is emitting light is called a light source.
3. The position and direction of the shadow change with the position of the light source.
Light and Shadow PPT, Part 4: Expansion and Extension
Shadow puppetry, also known as "shadow play" or "lantern shadow play", is a performing art that uses silhouettes of characters made of animal skins or cardboard to reflect the shape of the shadow on the screen using light.
Light and Shadow PPT, Part 5: Classroom Training
1. Fill in the blanks
1. It is used in many places such as traffic signs on the street and signs at the door of restrooms ( ).
2. To determine whether an object is a light source, first of all, it must be based on ( ).
3.The color of the shadow is ( ).
judge
1. The obstruction does not have to be between the light source and the screen. ( )
2. The moon is a light source because the moon is a luminous object. ( )
3. The rainbow is an optical phenomenon. ( )
4. As the object becomes farther and farther away from the light source, the shadow of the illuminated object becomes smaller and smaller. ( )
Light and Shadow PPT, Part Six: Homework
Learn to make hand shadows, observe the changing patterns of shadows, and keep records.
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Black matte fabric PPT background image:
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Four abstract light and shadow PPT background pictures:
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File Info
Update Time: 2024-09-09
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