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"The Sinking and Floating of Plasticine in Water" Sinking and Floating PPT
Part One: Observing the ups and downs of plasticine
Put a piece of plasticine into the water and watch it float.
Shape a piece of plasticine into various solid shapes, place it in water and watch it rise and float.
Changing the shape of the plasticine, ______ does not change, ______ does not change, its sinking and floating state ______ changes.
The sinking and floating of plasticine in water PPT, part 2: Let the plasticine float on the water
Can you think of a way to change the shape of the plasticine so that it floats on the water?
The same piece of plasticine is made into different shapes. Some sink into the water and some float on the water. What is the reason for this?
The sinking and floating of plasticine in water PPT, the third part: Comparing the amount of water displaced by plasticine
Let's measure the amount of water displaced by different shapes of plasticine in water.
We call the volume of water displaced by an object in water the volume of water displaced.
experimental method:
Take a measuring cup, pour 200ml of water into the measuring cup, make the plasticine into a solid ball, put it into the measuring cup, observe the amount of water displaced by it, and make a record.
Then make the plasticine into various shapes that can float on the water, observe the amount of water they displace, and record it in the table.
Precautions:
The amount of water displaced must be measured carefully, and the line of sight should be level with the liquid level when observing the scale.
After carefully observing the liquid level scale, record the data accurately to minimize the error.
Before each measurement, check whether the water volume is maintained at 200ml, and top it up if it is insufficient.
Steel sinks in water, but large ships made of steel can float on the water and can also carry cargo. Can you explain why this is?
Keywords: Free download of Chinese PPT courseware for the fifth grade volume 2 of the textbook version, PPT download of the sinking and floating of plasticine in water, PPT download of sinking and floating, .PPT format;
For more information about the PPT courseware "Sinking and Floating Plasticine in Water", please click on the "Sinking and Floating" PPT "Sinking and Floating" PPT tag.
"The Sinking and Floating of Plasticine in Water" Sinking and Floating PPT Download:
"The Sinking and Floating of Plasticine in Water" Sinking and Floating PPT Download
Part One Content: Collaborative Exploration
Observe the rise and fall of plasticine
Experiment name: Observe the sinking and floating of plasticine in water
Required equipment: plasticine, water, sink
Experimental steps
Take a piece of...
"The Sinking and Floating of Plasticine in Water" Sinking and Floating PPT Courseware 2:
"The Sinking and Floating of Plasticine in Water" Sinking and Floating PPT Courseware 2 1. Review Introduction 1. We have studied the rules of the sinking and floating of objects in the previous lesson: when the volume remains unchanged, changing the weight of the object can change the position of the object. The state of sinking and floating in water; the state of constant weight..
"The Sinking and Floating of Plasticine in Water" Sinking and Floating PPT Courseware:
"Sinking and Floating of Plasticine in Water" Sinking and Floating PPT Courseware Experiment 1. The sinking and floating of different shapes of plasticine solid balls in water 1. Measure the height of the water in the cup filled with water and record it. 2. Prepare a piece of plasticine and shape it into four different shapes one after another..