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Third Grade Science Volume 1, Textbook Edition	pptx	6 MB

"Aquatic Plants" Plant PPT

Author: ︶￣Ｓs°╮

Upload Time: 2024-09-30

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Description

"Aquatic Plants" Plant PPT

Part One: Common aquatic plants

Many plants grow on land, and many plants grow in water.

Water hyacinth

hornweed

water peanut

duckweed

Aquatic plants PPT, part 2: observing water hyacinth and hornwort

Put water hyacinth and hornweed into the tank, observe how they look in the water, and draw them with simple diagrams.

Water hyacinth can float on the water, what is its secret?

Use a knife to cut open the petiole of the water hyacinth and observe the structure inside.

The base of the water hyacinth petiole has an enlarged gourd-like spongy air sac, which is filled with air. This structural feature allows the water hyacinth to float on the water.

Aquatic plants PPT, part 3: Comparing similarities and differences

Water hyacinth and hornwort are aquatic plants. What conditions do they need to grow? How are they similar?

Grows in water and has structures adapted to the aquatic environment

Has roots, stems, leaves

Will reproduce and die

Growth conditions require water, sunlight, air, etc.

How are aquatic plants similar to and different from terrestrial plants such as trees and grasses?

Water hyacinth

grow in water

The petiole is swollen with air sacs and can float on the water

Setaria

grow in soil

The plant is short, the stem is thin and soft

Roots, stems and leaves

Will reproduce and die

Growth requires water, sunlight, and air

Keywords: Free download of Chinese PPT courseware for third-grade volume 1 of the textbook version, aquatic plant PPT download, plant PPT download, .PPT format;

For more information about the "Plants and Aquatic Plants" PPT courseware, please click on the "Plant ppt Aquatic Plants ppt" tag.

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Update Time: 2024-09-30

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Plant ppt Aquatic plants ppt

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"Aquatic Plants" Plant PPT