"Seed Germination Experiment (1)" Biology and Environment PPT Courseware 2

Description

"Seed Germination Experiment (1)" Biology and Environment PPT Courseware 2

think

For mung beans to sprout, are all the conditions mentioned by the students required?

So, which ones are necessary?

summary

We conduct experiments on this kind of experimental group and control group at the same time, and finally compare the experimental results of the two groups, which is called a comparative experiment. In comparative experiments, it should be noted that only one condition of the control group was changed, and other conditions were the same as those of the experimental group.

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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"Seed Germination Experiment (2)" Biology and Environment PPT Download:

"Seed Germination Experiment (2)" Biology and Environment PPT Download Part One: Introduction of New Lesson Have all the mung bean seeds we planted sprouted? What about mung bean seeds from other groups? Today we will study further. ... ... ... Seed Germination Experiment PPT, Chapter..

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

"Seed Germination Experiment (2)" Biology and Environment PPT Part 1: Organizing and analyzing experimental information. Have the mung bean seeds we planted sprouted? What about mung bean seeds from other groups? Collect experimental information from groups doing the same experiment and analyze it together. Experimental group and control...

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Update Time: 2024-10-17

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

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