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Category | Format | Size |
---|---|---|
Third Grade Science Volume 1, Textbook Edition | pptx | 6 MB |
Description
"The Sink and Float of Materials in Water" Materials Around Us PPT Courseware 2
think about it
1. How to judge the sinking and sinking of materials? How to calculate weight?
If the object touches the bottom of the tank downward, it means that it sinks in the water. If the object cannot touch the bottom of the tank, it means that it floats in the water.
All reasoning must be derived from observation and experiment. ——Galileo
Experimental requirements
1. Fill in the experiment record form, predict first, then experiment, and keep records. (Sink and float means)
2. Test the materials one by one in order. After testing one material, take it out and then test the next material. The same item should be tested at least three times.
3. When doing experiments, students are asked to gently put it in the middle of the water to prevent water droplets from splashing on the table.
What we found
1. Objects made of metal materials are mostly ______ in the water; objects made of wood, plastic, and foam materials are ______ in the water.
2. The sinking and floating of objects in water is related to the _____ that make up the object.
Expand research
How to prevent the waste of wood resources in life? Do you have any good ideas?
Students, what other alternatives to wood do you know?
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For more information about the PPT courseware "Materials Around Us: The Sink and Float of Materials in Water", please click on the Materials Around Us ppt: The Sink and Float of Materials in Water ppt tag.
"The Sink and Float of Materials in Water" Materials around us PPT:
"The Sinking and Floating of Materials in Water" Materials Around Us PPT Part One: Sinking and Floating Experiment If common materials such as wood, paper, metal, and plastic are put into water, which of them will float and which will sink? Collect something made of wood, metal, plastic...
"The Sink and Float of Materials in Water" Materials Around Us PPT Courseware 4:
"The Sink and Float of Materials in Water" Materials around us PPT courseware 4 Think about it 1. How do materials go into water? Place the object lightly in the middle of the water and then let go. 2. How to judge the sinking and floating of materials? How to calculate weight? If the object touches the bottom of the tank downwards, it means it is in the water...
"The Sink and Float of Materials in Water" Materials Around Us PPT Courseware 3:
The Sink and Float of Materials in Water》Materials Around Us PPT Courseware 3 Chess Competition Class three of the third year is going to hold a chess competition, and the students are very happy. Xiao Hong and Xiao Ming were happily running to the activity room to help the whole class play chess. When they arrived at the activity room, they were both dumbfounded because...
File Info
Update Time: 2024-10-26
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