"Seed Germination Experiment (1)" Biology and Environment PPT Courseware

Description

"Seed Germination Experiment (1)" Biology and Environment PPT Courseware

scientific concept

Seed germination requires certain conditions

Process and Method

Go through the process of seed germination experiments, use comparative experiments to observe, and record the conditions that affect seed germination.

Emotions, attitudes, values

Develop an interest in experimental observation

Discuss the design experiment plan:

1. What problem do you want to study and how do you plan to do it?

2. What do you predict the outcome will be?

3. What conditions were changed in your research?

4. Which conditions have not changed?

5. How to know whether the changed conditions have an impact on seed germination?

6. What should we pay attention to during experimental research?

Why use three seeds?

It is to remind students of the rigor of scientific experiments. If only one seed is used and the seeds do not germinate, it may not be due to the experimental conditions but to the fact that the seeds themselves cannot germinate. Using three seeds reduces this possibility.

An experiment must be conducted by at least two groups at the same time, emphasizing the repeatability of scientific experiments.

An experimental conclusion must be supported by multiple repeatable evidences.

practise

1. When studying the effect of water on seed germination, the conditions that do not need to be controlled are _____, ______, ______, _______, and the conditions that need to be controlled are _______.

2. When doing a comparative experiment, only _____ conditions are different, and the other conditions are _______.

3. When doing comparative experiments, the group that is consistent with our guess is called _____, and the group that is inconsistent with our guess is called _____.

1. Put two groups of the same seeds, one group at room temperature and one group in the refrigerator, keep the low temperature, and add an appropriate amount of water to both. The conditions changed in this experimental design are ( )

A. Light B. Temperature C. Water

2. Two groups of identical seeds are placed at room temperature. One group is exposed to light and an appropriate amount of water is added. The other group of seeds is covered with a paper box and a small amount of water is added. This experimental design ( )

A. It is scientific B. It is unscientific C. It is impossible to judge

3. The own conditions for seed germination ( )

A. Complete living embryo B. Suitable temperature C. Sufficient air

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Update Time: 2024-08-21

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

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