"Water Goes to Higher Places" PPT download

"Water Goes to Higher Places" PPT download
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Qingdao Edition Third Grade Science Volume 1 pptx 6 MB
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"Water Goes to Higher Places" PPT download

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Qingdao edition third grade science volume 1, water flows to higher places PPT download

Part One: Magic

Magic: white flowers turn into red flowers

Notice carefully how the flowers turn red?

The water is below and the flowers are above. How do the flowers turn red?

Water can rise along porous materials, a phenomenon called capillarity.

If two pieces of glass are put together side by side, will capillary phenomena occur?

What does the amount of water sucked up have to do with it?

Water flows to higher places PPT, part 2: Application of capillarity in life

Application of capillarity in life

The towel is hanging on the basin and dripping water

A rag absorbs water from the table

Paper towels absorb oil dripping from clothes

Sponge absorbs water

Chalk absorbs ink

alcohol lamp

Water flows to higher places PPT, the third part: content extension

After the farmer uncles have watered the ground, they have to hoe it loose. Why is this? Use what you have learned to explain.

Hoeing the ground loosely increases the gaps between particles on the soil surface. Water in the soil cannot rise along the small gaps, making it difficult to form capillary phenomena. This can prevent water from evaporating and maintain soil moisture.

When transplanting plant seedlings, why do people need to transplant them with soil?

Protect the root hairs of plants. Under capillary action, the root hairs absorb water so that the plants can survive as quickly as possible.

We know that some objects can exhibit capillary phenomena and some objects cannot. What if the shapes of these objects are changed?

(For example, most stones do not exhibit capillary phenomena, but what happens after they are crushed into stone powder?)

My guess: ________

experimental method:________

Experimental results:________

Keywords: Free download of Qingdao version of science PPT courseware for third grade volume 1, Water Goes to Higher Places PPT courseware, .PPT format;

For more information about the "Water Goes to Higher Places" PPT courseware, please click on the "Water Goes to Higher Places" PPT tab.

"Water Goes to Higher Places" PPT courseware:

Qingdao version of third-grade science volume 1, PPT courseware on water moving to higher places, part one: Warm tips Warm tips: 1. Dip (jn) one end of the material into the water, hold the upper end of the material with your hand and keep it still for a period of time. 2. Observe experimental phenomena quietly and carefully and...

"Water Goes Higher" PPT:

Qingdao version of third-grade science volume 1, water flows to higher places PPT, part one: What items can make water move? Will water flow to lower places, and will it move in other directions? Immerse the lower end of the towel in water. After a period of time, why does the upper end of the towel also get wet? Water is...

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Update Time: 2024-10-01

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