"The Sinking and Floating of Potatoes in Liquid" Sink and Float PPT

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"The Sinking and Floating of Potatoes in Liquid" Sink and Float PPT

Part One: The Rise and Fall of the Potato

Put the potatoes into two cups of liquid and observe how they sink and float.

Potatoes sink in one cup and float in another cup. Why?

Are the potatoes the same?

Are the cups the same size?

Is there the same amount of liquid in the cup?

Are the contents of the liquid in the cup the same?

PPT on the sinking and floating of potatoes in liquids, part 2: observing and comparing two liquids

How can you compare the difference between two glasses of liquid?

Take a drop of each of the two cups of liquid, place it on an iron sheet, heat it, and observe the traces left behind after the droplets dry.

Conclusion: The unknown liquid contained __________, which made the potatoes float.

The sinking and floating of potatoes in liquid PPT, Part 3: Prepare a cup of liquid to make potatoes float

Does it mean that as long as other substances are dissolved in the liquid, potatoes will definitely float? Try making a liquid that floats the potatoes!

1. Pour 100ml of water into the beaker;

2. Add one level spoonful of salt at a time into the beaker;

3. Stir thoroughly with a glass rod until completely dissolved (do not use excessive force to avoid the liquid spilling out of the cup);

4. Wait until the liquid level calms down and observe the sinking and floating of the potatoes.

5. Keep records during the experiment and clean up the experimental equipment after the experiment.

Through experiments, have you discovered why potatoes float?

The properties of the liquid can change the sinking and floating of the potato;

When the dissolved substances in the water reach a certain concentration, potatoes will float.

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For more information about the "Sink and Float Potatoes in Liquids" PPT courseware, please click on the "Sink and Float PPT Potatoes in Liquids" PPT tag.

"The Sinking and Floating of Potatoes in Liquid" PPT download of sinking and floating:

"The Sinking and Floating of Potatoes in Liquid" PPT download of sinking and floating

Part One Content: Collaborative Exploration

The rise and fall of the potato

Place the potatoes into two cups of liquid and observe how they sink and float.

Experiment instructions:

The same potato, in liquid...

"The Sinking and Floating of Potatoes in Liquids" Sinking and Floating PPT Courseware 3:

"The Sinking and Floating of Potatoes in Liquids" Sinking and Floating PPT Courseware 3 Demonstration Experiment Put a potato into a cup and it sinks; take out the potato and dry it, put it in another cup, but the potato floats! Why? How do you know if salt is added to a glass of water? Heating method:..

"The Sinking and Floating of Potatoes in Liquids" Sinking and Floating PPT Courseware 2:

"The Sinking and Floating of Potatoes in Liquids" Sinking and Floating PPT Courseware 2 Activity 1: Will a sinking object be subject to the buoyancy of water? Experiment plan: Research question: Will a sinking object be subject to the buoyancy of water? Required equipment: Stones , spring dynamometer, thin wire, measuring cup, water, etc..

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Update Time: 2024-09-27

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

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