"The Ice Melts" Changes in Temperature and Water PPT

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Third Grade Science Volume 2, Textbook Edition	pptx	6 MB

"The Ice Melts" Changes in Temperature and Water PPT

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Upload Time: 2024-11-19

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"The Ice Melts" Changes in Temperature and Water PPT

Part One: Observing the Melting of Ice

Place the ice cubes into the beaker and use a thermometer to measure and record the temperature of the ice cubes.

Let the ice cubes melt on their own. As the ice melts, the temperature is measured at even intervals.

When the ice cube has completely turned into water, record the reading on the thermometer.

Communicate what we observe.

When the ambient temperature is higher than 0℃, the ice starts to melt when the temperature rises to 0℃;

During the melting process of ice, the temperature will remain at 0℃ for a long time until it completely melts into water.

Ice melts PPT, part 2: speeding up the melting of ice

Under what circumstances does ice melt into water?

As ice melts, it absorbs heat from its surroundings.

Heat is an important factor in changing the state of water.

How can you speed up the melting of ice?

Each group takes an ice cube of the same size, puts it into a transparent plastic bag, and seals the bag. Let's have an ice melting contest.

Record the time it takes for each group to completely melt the ice.

Communicate ways to make ice cubes melt quickly. What method can make ice cubes melt faster?

Keywords: Free download of Chinese PPT courseware for the second volume of the third grade of the textbook version, PPT download of ice melting, PPT download of changes in temperature and water, .PPT format;

For more information about the "Changes in Temperature and Water - Ice Melts" PPT courseware, please click on the "Changes in Temperature and Water - PPT Ice Melts" PPT tag.

"The Ice Melts" PPT download of changes in temperature and water:

"Ice Melts" PPT download of changes in temperature and water Part 1: Introduction of new knowledge Under what conditions can ice turn into water? Liquid water will solidify into ice below 0°C, so can solid ice turn into liquid water again? ... ... ... Ice melts..

"Ice Melts" Changes in Temperature and Water PPT Courseware 3:

"The Ice Melts" PPT Courseware 3 on Changes in Temperature and Water Recall the last lesson when we turned the water in the test tube into ice. What did you find? Do you know what the process of turning water into ice is called? Scientists say: For an object, a decrease in temperature indicates its heat...

"Ice Melts" Changes in Temperature and Water PPT Courseware 2:

"Ice Melts" Changes in Temperature and Water PPT Courseware 2 Research Purpose The volume of ice affects melting. The concentration of ice affects its melting rate. The melting speed characteristics of ice cubes with different solutes. Effect of solute particle size on ice melting. Reality..

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Update Time: 2024-11-19

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Changes in temperature and water PPT Ice melts PPT

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"The Ice Melts" Changes in Temperature and Water PPT