"Growing Our Plants" Plant Growth Changes PPT Courseware 2

Description

"Growing Our Plants" Plant Growth Changes PPT Courseware 2

Knowledge explanation

Key points for cultivating impatiens

22℃～30℃ is suitable for germination, March to April and September to October are suitable for sowing; 15℃～32℃ is suitable for growth, and May to July and December to February are the flowering period. Sow the seeds on the culture soil and lightly cover them with soil by about 0.3 cm. Sowing too deeply will cause root rot and death of the seedlings.

It will sprout after 5 to 6 days. After 3 to 4 true leaves have grown, it can be planted in flower pots or flower beds with a distance of 30 cm between plants. The best cultivation soil is fertile and well-drained sandy loam, with sufficient sunshine. After planting, remove the top when the plant height is about 10 cm. Appropriate application of compound fertilizers, organic fertilizers, etc. during the growth period.

What happens to the seeds that are sown in the soil? How can we see the changing process of seeds?

1. Place several layers of paper on the inner wall of a transparent glass, add some soil, and make the paper towel stick to the wall of the cup.

2. Place the impatiens seeds between the cup wall and the paper (place the seeds in different directions).

3. Pour an appropriate amount of water into the soil and do not let the seeds soak in the water.

What are the contents of the observations?

Pay attention to observe and record the growth changes of the seeds in the transparent glass:

● What grows from the seed first, then what comes out.

● The direction of root growth of seeds placed in different directions.

● Measure root length once a day and record it.

Knowledge expansion

Things to note when observing

1. Remember from sowing;

2. Generally recorded once a week;

3. Record several key times during the growth and change process:

Sow - take root - sprout - bud - bloom - bear fruit - mature

The above time must be recorded accurately, preferably with photos or drawings;

4. It is best to have your own unique discoveries.

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For more information about the PPT courseware "Growth Changes of Plants and Planting Our Plants", please click the Growth Changes of Plants and Planting Our Plants PPT tab.

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Update Time: 2024-07-02

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

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