Giải bài tập sách bài tập (SBT) bài 38: Thực hành: Quan sát , mô tả sinh trưởng và phát triển ở một số sinh vật

The exercise in the workbook (WB) lesson 38 focuses on observing and describing the growth and development of various organisms in the natural science subject. This is part of the "Connecting Knowledge" series designed according to the new curriculum of the Ministry of Education. The detailed instructions aim to help students better grasp the lesson.

Task 38.1 requires students to arrange the following steps to correctly perform an experiment observing the growth and development of plants:

1. Prepare different types of seeds with the same characteristic of fast germination, then soak the seeds in warm water (around 40°C).
2. Sow the germinated seeds into labeled pots, use a mist sprayer to moisten the soil.
3. Prepare plastic pots of the same size, label the intended plant to be planted in each pot, add the same type of loose and fertile soil with plenty of compost to each pot.
4. Observe the germination, root differentiation, stem, and leaf development of the plants in each pot.
5. Place the pots in an environment with sufficient light, water daily, and monitor the progress.

Based on the given steps, the correct order of procedures is as follows:

1. Prepare different types of seeds with the same characteristic of fast germination, then soak the seeds in warm water (around 40°C).
2. Prepare plastic pots of the same size, label the intended plant to be planted in each pot, add the same type of loose and fertile soil with plenty of compost to each pot.
3. Sow the germinated seeds into labeled pots, use a mist sprayer to moisten the soil.
4. Place the pots in an environment with sufficient light, water daily, and monitor the progress.
5. Observe the germination, root differentiation, stem, and leaf development of the plants in each pot.

By following these steps, students can conduct a successful experiment to observe the growth and development of plants in a structured manner. This hands-on approach allows them to learn about the lifecycle of plants and understand the importance of environmental factors in their growth.