Fifth Grade Science Volume 1, Textbook Edition
Science Edition for Sixth Grade Science Volume 2
Science Edition for Sixth Grade Science Volume 1
Third Grade Science Volume 2, Textbook Edition
Third Grade Science Volume 1, Textbook Edition
Fourth Grade Science Volume 2, Textbook Edition
Fourth Grade Science Volume 1, Textbook Edition
Fourth-grade science volume 2 of the E-education edition
Qingdao Edition Fourth Grade Science Volume 2
Hunan Education Edition Fourth Grade Science Volume 1
E-education edition fifth grade science volume 1
E-education edition fifth grade science volume 2
E-education edition sixth grade science volume 1
Fifth Grade Science Volume 2, Textbook Edition
Qingdao Edition Fourth Grade Science Volume 1
Zhejiang Education Edition Seventh Grade Science Volume 2
Category | Format | Size |
---|---|---|
Fourth-grade science volume 2 of the E-education edition | pptx | 6 MB |
Description
"Seed Germination" PPT Courseware 3
practice
1. In order to get seedlings of a certain plant as quickly as possible, ( ) is generally chosen when selecting seeds.
A. Young seeds that have just been picked B. Seeds that have passed the dormant period
C. Freshly harvested seeds that are about to mature. D. Seeds that have been stored for more than 3 years.
2. The reason why rice and watercress cannot grow seedlings in fertile soil is ( )
A. No seed coat B. Insufficient soil fertilizer
C. No radicle D. No complete embryo
Knowledge preparation:
1. General steps of inquiry
Ask questions, make hypotheses, formulate plans, implement plans, draw conclusions, express and communicate
2. What is a controlled experiment?
Ensure that the conditions being studied are different and other conditions are the same.
3. What is the key to the inquiry experiment?
Set up a controlled experiment and control the variables to ensure that except for the only variable, other conditions are the same and appropriate.
Group work requirements
Members of the group first ask each other about what they do not understand in the experiment.
Each member communicates his or her own experimental process, and the team leader is responsible for summarizing the experimental results and drawing the experimental conclusion of the group.
Problems that cannot be solved by this group can be raised during class communication.
Each group should select a representative to communicate within the class.
Use your brain and think about it
Ask the question: What are the environmental conditions for seed germination?
Make a hypothesis: Seed germination requires the right amount of water, the right temperature, and plenty of air.
making plans:
1. Prepare three complete and plump soybean seeds, a beaker filled with water and a wire with a hook.
2. Place three soybean seeds in a beaker as shown in the figure, so that the upper one is completely exposed to the air, the middle one is half soaked in water and half exposed to the air, and the lower one is completely soaked in water.
3. Place the beaker at a suitable temperature. Observe again after a few days to see which seed germinates first.
Keywords: Seed germination teaching courseware, E-education version fourth grade science PPT courseware download for the second volume, fourth grade science slide courseware download, seed germination PPT courseware download, .PPT format;
For more information about the "Seed Germination" PPT courseware, please click on the "Seed Germination ppt" tab.
"Seed Germination Experiment (2)" Biology and Environment PPT Teaching Courseware:
"Seed Germination Experiment (2)" Biology and Environment PPT Teaching Courseware Part One: Science Tips Seed Germination First: absorb water and expand. Generally, seeds containing more starch and oil require less water, while seeds containing more protein require more water. Secondly: As the seeds absorb...
"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...
File Info
Update Time: 2024-10-20
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