"Seed Germination Experiment (2)" Biology and Environment PPT Courseware

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"Seed Germination Experiment (2)" Biology and Environment PPT Courseware

Have the mung bean seeds we planted sprouted?

In today's lesson we will analyze the experimental data and draw conclusions.

Organize statistics

Collect experimental information from the same experimental group and fill in the statistical table.

Experimental records of whether mung bean seeds need to germinate ( )

think:

(1) What information does the experiment bring us?

(2) Are the experimental results consistent with the guesses before the experiment? What does it mean?

(3) What are the necessary conditions for mung beans to germinate?

References:

Basic conditions for seed germination

1. Temperature:

The lowest temperature for seed germination is 6-7°C, and normal germination can occur at 12-14°C. The optimal temperature is 20-25°C, and the highest is 35°C.

2. Moisture:

Seed germination generally requires absorbing 120% -140% of the moisture equivalent to the dry weight of the seed itself to germinate.

3. Air:

Seed germination requires sufficient oxygen in the air.

The germinated seed can grow into a mung bean sprout in a suitable environment.

Mung bean sprouts are the sprouts of mung beans.

During the germination process of mung beans, vitamin C will increase a lot, and part of the protein will also be decomposed into amino acids needed by various people, which can reach seven times the original content of mung beans, so the nutritional value of mung bean sprouts is greater than that of mung beans.

Challenge tasks:

Planting mung bean sprouts

1. Plant mung bean sprouts in a flower pot, place them in a suitable place, and let the mung bean sprouts grow for a period of time.

3. Predict which conditions will affect the growth of mung bean sprouts.

4. Observe and record the growth of mung bean sprouts. (book page 7)

How to transplant mung bean sprouts?

(1) Fill the pot with soil to one-third of the way, and use tools to take out the sprouted mung beans from the planting box, being careful not to damage the roots.

(2) Gently loosen the soil in the flower pot, place the mung bean sprouts in the middle of the flower pot, add the soil in the flower pot to two or three centimeters away from the flower pot, and gently press the soil around the mung bean sprouts.

(3) Water the flower pot thoroughly until the water flows out of the drainage hole, and then place the flower pot on the balcony.

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Update Time: 2024-09-04

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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