Category	Format	Size
Third Grade Science Volume 1, Textbook Edition	pptx	6 MB

"The Air Around Us" Water and Air PPT

Author: ︶￣Ｓs°╮

Upload Time: 2024-11-18

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Description

"The Air Around Us" Water and Air PPT

Part One: What we know about air

Without opening the bag, we found the bag containing the air. On what basis do we discern? What do we know about air?

The air around us PPT, part 2: Does air exist?

Is there really air in the bag? How can you prove to others that air does exist?

Write down our experimental practices and phenomena on the record sheet, and explain our views on these phenomena.

Squeeze the air out of the bag with your hands. The bag will bulge and deflate as the gas flows.

Squeeze the air out of the bag and blow on the small strip of paper.

The gas in the bag forms observable bubbles in the water.

Use books to put on the bag, the bag can bear weight...

Air around us PPT, part 3: Comparing water and air

What are the similarities and differences between air and water?

Can't see

Can't touch

visible

Touchable

Colorless, odorless, transparent, no fixed shape

Keywords: Free download of Chinese PPT courseware for the third grade of the textbook version, PPT download of the air around us, PPT download of water and air, .PPT format;

For more information about the "Air, Water and Air Around Us" PPT courseware, please click on the "Air Around Us" PPT Water and Air PPT tab.

"Laboratory Preparation and Properties of Oxygen" PPT download of the air around us:

"Laboratory Preparation and Properties of Oxygen" PPT download of the air around us, 21 pages in total. Full Solution Textbook Experiment Purpose 1. Learn how to produce oxygen in the laboratory. 2. Gain a deeper understanding of the properties of oxygen. Experimental supplies: large test tubes, single-hole rubber stoppers, rubber tubes,...

"Laboratory Preparation and Properties of Oxygen" Air Around Us PPT:

"Laboratory Preparation and Properties of Oxygen" PPT of the air around us, 16 pages in total. Introduce new lesson Observation and thinking How to use these experimental supplies to produce oxygen in the laboratory? Large test tube, test tube clamp, single-hole rubber stopper, rubber tube, glass tube, gas bottle, water...

"Preparing Oxygen" Air Around Us PPT (Lesson 2):

"Preparing Oxygen" PPT of the air around us (Lesson 2), 21 pages in total. Learning Objectives 1. Understand the methods and principles of using potassium permanganate to produce oxygen in the laboratory. 2. Know the experimental equipment and procedures for producing oxygen in the laboratory using potassium permanganate. 3. Understand decomposition reaction...

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Update Time: 2024-11-18

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Air around us PPT Water and air PPT

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"The Air Around Us" Water and Air PPT