"Rock Changes" PPT

Description

Hunan Education Edition Sixth Grade Science Volume 1, Rock Change PPT

Part One: Simulation Experiment

What exactly causes this?

What force caused the rock to change?

Let us make a guess first...

How to confirm our guess?

Simulation experiment

It is our indispensable method of verification!

"Will Rocks Change Their Appearance" Simulation Experiment 1

"Cold and heat effects change rocks" simulation experiment research plan

Experimental materials: alcohol lamp, matches, stones, tweezers, beaker containing water, etc.

Experimental steps:

1. Light the alcohol lamp (pay attention to correct use!).

2. Use tweezers to hold the rock and heat it over the outer flame of an alcohol lamp.

3. Immediately place the heated rocks into cold water and observe.

4. Repeat the experiment several times, observe and analyze the experimental phenomena.

Experimental phenomenon: cracks appear on the rock surface and gravel chips fall off.

Experimental conclusion: Changes in hot and cold temperatures can cause changes in rocks.

"Will Rocks Change Their Appearance" Simulation Experiment 2

"Flowing water changes rocks" simulation experiment record sheet

Experimental materials: plastic bottles with lids, water, and rock blocks.

Characteristics of rocks before the experiment: some are angular, some are sharp, and can easily cut hands.

Characteristics of the rock after the experiment: the edges and corners of the stone became rounded, and some gravel fragments appeared in the bottle.

Experimental conclusion: Running water can change rocks.

Rock changes PPT, part 2: summary review

Summary review:

In today's lesson, we learned that rocks will change their appearance due to weathering. We also have many imaginations of weathering in our lives. I hope students will observe carefully and discover!

After-school development:

1. Investigate the special geological landscape of our hometown, analyze the causes, and write a research report.

2. Search the Internet for pictures of rock weathering landscapes and make electronic cards to send to relatives, friends and alumni.

Keywords: Hunan Education Edition sixth grade science PPT courseware free download, rock changes PPT download, .PPT format;

For more information about the "Rock Changes" PPT courseware, please click on the "Rock Changes" ppt tab.

"Rock Changes" PPT courseware:

Hunan Education Edition, sixth grade science, volume 1, rock changes PPT courseware, part one: causes of rock changes. What may be the reasons for the changes in rocks? Smooth and rounded reefs More than 2,000 years ago, when Li Bing and his son were building the Dujiangyan (yn) water conservancy project, they wanted to...

File Info

Update Time: 2024-11-02

This template belongs to science courseware Hunan Education Edition Sixth Grade Science Volume 1 industry PPT template

Preview