"The Secret of Ups and Downs" PPT courseware

Category	Format	Size
Fourth-grade science volume 2 of the E-education edition	pptx	6 MB

"The Secret of Ups and Downs" PPT courseware

Author: ︶￣Ｓs°╮

Upload Time: 2024-09-08

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Description

"The Secret of Ups and Downs" PPT courseware

When playing with submarines, we discovered that the amount of water in the submarine determines the ups and downs of the submarine. What does the ups and downs of general objects have to do with it?

Arrange these six objects in order of size

Objects: mineral water bottle ( ), apple ( ), pebble ( ), plastic foam ( ), rubber ( ), paper clip ( ).

Arrange these six objects according to their weight

Objects: apple ( ), pebbles ( ), mineral water bottle ( ), rubber ( ), plastic foam ( ), paper clip ( ).

Our research plans

Research project: The ups and downs of objects are related to their own weight

Speculation: When the volumes are the same, the heavier object sinks first

Experimental method: comparative experiment

Conditions to be changed: the weight of the object

Conditions that remain the same: the volume of the object

in conclusion:

1. The ups and downs of an object are related to its own mass and volume.

2. Objects made of different materials, if they have the same volume, heavy objects will sink easily; if they have the same mass, small objects will sink easily.

3. Objects with large volume and small mass tend to float, while objects with small volume and large mass tend to sink.

Keywords: The Secret of Ups and Downs teaching courseware, download the science PPT courseware for the second volume of the fourth grade in the E-education edition, download the science slide courseware for the fourth grade, download the Secret of Ups and Downs PPT courseware, .PPT format;

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Update Time: 2024-09-08

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"The Secret of Ups and Downs" PPT courseware