"Why Bicycle Tires Burst" PPT courseware

Description

"Why Bicycle Tires Burst" PPT courseware

Part One: Exploring the Thermal Expansion and Contraction of Gases

Experimental equipment: solid thermal expansion and contraction instrument, alcohol lamp, matches, sink, cold water

Experimental steps:

First observe whether the copper ball can pass through the metal ring;

Use an alcohol lamp to heat the copper ball for 3 minutes;

Observe whether the heated copper ball can pass through the metal ring;

Put the copper ball into cold water to cool down, and then observe

Can a copper ball pass through a metal ring?

Kind tips:

1. Handle glassware with care, and do not burn your hands when pouring hot water.

2. The experiment should be carried out in an orderly manner through division of labor and cooperation.

3. Observe carefully, think carefully, and communicate softly during the experiment.

4. After the experiment, the experimental equipment should be placed.

Why bicycle tires burst PPT, part 2: knowledge accumulation

Under normal circumstances, objects (liquids, solids, gases) have the property of thermal expansion and contraction.

Objects of different materials have different degrees of thermal expansion and contraction. Under the same circumstances, gas expands the most when heated, liquid expands more, and solid expands the least.

Keywords: Qingdao edition fourth grade science PPT courseware for the second volume free download, why bicycle tires burst PPT download, .PPT format;

For more information about the PPT courseware "Why Bicycle Tires Burst", please click on the Why Bicycle Tires Burst ppt tag.

"Why Bicycle Tires Burst" PPT download:

"Why Bicycle Tires Burst" PPT Download Part One: Classroom Experiment Independent Learning: Why do bicycle tires burst under sunlight? We already know that liquids expand with heat and contract with cold, but does air also expand with heat and contract with cold? In class...

"Why Bicycle Tires Burst" PPT:

"Why Bicycle Tires Burst" PPT Part One: Questions and Answers Please make bold assumptions before answering: Under normal circumstances, liquids have the properties of thermal expansion and contraction. Does air also have the characteristics of thermal expansion and contraction? Experimental method 1. Put the air filled...

File Info

Update Time: 2024-09-19

This template belongs to science courseware Qingdao Edition Fourth Grade Science Volume 2 industry PPT template

Preview