"Do objects sink or float in water?" PPT download of sinking and floating

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"Do objects sink or float in water?" PPT download of sinking and floating

Part One: Exploring New Knowledge

Observe the rise and fall of objects

Gently put the bricks and wooden blocks into the water and observe their sinking and floating in the water.

Discovery: Put the bricks and wooden blocks gently into the water. The bricks will sink to the bottom and the wooden blocks will float on the water.

How to operate:

First predict whether the objects will sink or float in the water, give the reasons for the prediction, and then put them in the water to observe.

Precautions:

Several objects are gently placed in the water. The objects must be completely placed in the water, not thrown into the water, or placed on the water.

Whether objects sink or float in water PPT, part 2: expansion and extension

Suspension means that an object neither sinks to the bottom nor emerges from the liquid surface in a liquid, that is, the entire volume of the suspended object is in the liquid.

Suspended objects can stay anywhere in the liquid. For example, fish and submarines can be suspended in the water.

The Titanic was the largest luxury liner in the world at the time, and was known as the "unsinkable liner" and "dream liner." The Titanic cost a total of 75 million pounds, with a tonnage of 46,328 tons, a length of 269.1 feet, a width of 28.2 meters, a length of 53.3 meters from the keel to the top of the four large chimneys, and a height equivalent to an 11-story building. It was a world-class super luxury ship at the time.

Whether an object sinks or floats in water PPT, Part 3 content: Class summary

Objects sink and float in water, and there are certain standards for judging their sinking and floating. If an object made of the same material changes its weight and volume, its sinking and floating conditions will not change.

Whether an object sinks or floats in water PPT, Part 4 content: Classroom exercises

1. Fill in the blanks

1. Objects of the same material change their weight and volume, as well as their sinking and floating conditions ( ).

2. Put the object ( ) into the water from the water surface, not the object ( ), nor ( ).

3. Objects sink or float in water, and there are certain standards for judging ( ).

2. Judgment questions

1. Some variables of an object determine the ups and downs of the object. ( )

2. If the weight and volume of an object are changed, the sinking and floating conditions of the object will change. ( )

3. Potatoes sink in water. If you cut a potato into half, it will sink. If you cut it into small pieces, it will float. ( )

Whether objects sink or float in water PPT, Part 5: Homework

Try it. Is there any way you can make the paper clip float on the water?

Keywords: Free download of Chinese PPT courseware for the fifth grade volume 2 of the textbook version, whether objects sink or float in water PPT download, sinking and floating PPT download, .PPT format;

For more information about the PPT courseware "Sinking and Floating Objects: Will They Sink or Float in Water?", please click the "Sinking and Floating Objects Will Sink or Float in Water" ppt tag.

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Update Time: 2024-11-24

This template belongs to science courseware Fifth Grade Science Volume 2, Textbook Edition industry PPT template

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