"The Ice Melts" PPT Courseware on Changes in Temperature and Water

Description

"The Ice Melts" PPT Courseware on Changes in Temperature and Water

Discussion and exchange 1:

What is the temperature of ice as it melts?

The temperature of ice when it turns into water is around 0°C.

Discussion exchange 2:

What do you think will happen to the temperature of the water next?

The temperature of the water will continue to rise until it is the same temperature as the air in the classroom.

think:

Under what circumstances does ice melt into water? How can you speed up the melting of ice?

Place it in a place with high temperature, bask in the sun, cover it with your hands, blow hot air from your mouth...

Knowledge display stand

1. Ice starts to melt when _______. When ice melts, it needs _______ heat from the surroundings.

2. During the melting process of ice, the temperature always remains at _______.

3. The process of ice turning into water is called _______.

concept

1. The temperature of ice keeps rising. When the temperature rises to 0℃, the ice begins to melt and remains at 0℃ for a long time during the melting process.

2. When ice melts, the temperature of the surrounding air drops and absorbs heat from the surroundings. When the temperature rises, the heat increases; heat is an important factor in changing the shape of water.

3. Ways to speed up the melting of ice: ① Place the ice cubes next to the fire; ② Put the ice cubes in the sun; ③ Use our hands to heat the ice cubes.

4. The process of solid ice turning into liquid water is called melting.

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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..

"The Ice Melts" Changes in Temperature and Water PPT:

"Ice Melts" PPT Changes in Temperature and Water Part One: Observing the Melting of Ice Put the ice cubes into the beaker, 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..

"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...

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Update Time: 2024-09-30

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

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