| Category | Format | Size |
|---|---|---|
| Science Edition for Sixth Grade Science Volume 1 | pptx | 6 MB |
"Looking for Arches" Shape and Structure PPT
Description
"Looking for Arches" Shape and Structure PPT
Part One: Dome and Sphere
There are many dome-shaped and spherical objects in life, have you noticed?
Observe the cut-open table tennis shell, take a look and pinch it. How is its thickness, softness and hardness?
Try it, how much pressure can three such table tennis shells buckle on the table bear?
If you squeeze and press a complete table tennis ball hard with your hands, will it easily become deflated?
What are the similarities between domes and arches? Try to explain the pressure-bearing characteristics of a dome shape.
The dome shape can be seen as a combination of arches. It has the characteristics of arch bearing large pressure and does not produce outward pushing force.
What are the similarities between a sphere and an arch? Try to explain the pressure-bearing characteristics of a sphere.
A sphere can be seen as an arch in all directions, which makes it stronger than any other shape.
Find the arch PPT, the second part of the content: the shape of the plastic bottle
Carefully observe the shapes of the top, middle and bottom of the plastic beverage bottle, and what other shapes are on the surface.
The mouth of the bottle is cylindrical
The upper part is dome-shaped or conical
The middle bottle is cylindrical.
The surface has circular arches, vertical arches or other convex and concave shapes.
Looking for Arches PPT, Part 3: Arches in Organisms
Do we have arches in our own bodies?
Arched ribs protect the internal organs in the chest.
The human skull is approximately spherical, which protects the brain well.
Do we have arches in our own bodies?
The bones of the human foot form an arch - the arch, which can better bear the weight of the human body.
In nature, are there any natural arches?
Observe the shells below. What significance do these shapes have to the organisms themselves?
Keywords: Free download of the Chinese PPT courseware for the first volume of the sixth grade in the textbook edition, download the arched PPT, download the shape and structure PPT, .PPT format;
For more information about the PPT courseware "Shape and Structure to Find Arches", please click on the Shape and Structure PPT to Find Arches PPT tab.
"Finding Arches" Shape and Structure PPT Teaching Courseware:
"Finding Arches" Shape and Structure PPT Teaching Courseware Part One: Introduction of New Lessons There are many arc-shaped things around us. Do they have anything to do with arches? Do you want to know? ... ... ... Find the arched PPT, the second part of the content: new lesson learning..
"Looking for Arches" Shape and Structure PPT Download:
"Looking for Arches" Shape and Structure PPT Download Part One Content: New Lesson Exploring the Bearing Capacity of Dome Shapes and Spherical Shapes Research Content Dome Shape and Spherical Shape Bearing Capacity Experimental Materials Table Tennis Balls, Books Experimental Steps 1. Observe the table tennis balls and see One look at the thickness of the ball shell...
"Finding Arches" Shape and Structure PPT Courseware 4:
"Looking for Arches" Shape and Structure PPT Courseware 4 What are the characteristics of an arched structure carrying gravity? When the arch is subjected to vertical pressure, it must generate horizontal thrust to both sides at the same time, and transmit the force downward and outward to the adjacent parts. Observe the cut-open table tennis shell, look at it, pinch it...
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Update Time: 2024-06-30
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