"Facing Several Unknown Minerals" Rocks and Minerals PPT Download

Description

"Facing Several Unknown Minerals" Rocks and Minerals PPT Download

Part One: Importing New Knowledge

Students, what methods do you know about observing and describing rocks and minerals?

Observation methods: look, smell, touch, carve, knock, drop hydrochloric acid

Describe rocks: color, smoothness, particle size, hardness, softness, transparency, pattern, color, biological traces, etc.

Describe minerals: color, streaks, hardness, transparency, luster, shape

Facing several unknown mineral PPT, the second part: new knowledge explanation

Do we know of other ways to observe and describe minerals?

Some minerals can be picked up with magnets

You can know the weight of minerals by weighing them with your hands.

To know if your guess is correct, what should you do?

What are the characteristics of these minerals that we want to collect first?

Then compare the data to identify

Group activity: Let’s identify minerals together

(1) Divide into groups and carefully observe minerals

(2) Fill in the mineral characteristics card

(3) Identify the name by comparing it with the textbook "Mineral Characteristics Card"

Facing several unknown minerals PPT, the third part: Consolidation exercises

1. What other ways do we know of observing and describing minerals ( ) ( )

2. The methods used by geologists to identify minerals include ( ) ( ) ( )

( )

True or false

1. When geologists identify minerals, they often use microscope observation based on field observations, and further confirm by comparing data and illustrations. ( )

2. Massive minerals, iron-black or dark red in color, cherry-red streaks, ore powder can be used to make red paint and red pencils. This mineral is quartz. ( )

Facing several unknown minerals PPT, the fourth part: Class summary

What did you learn in this lesson?

1. What characteristics do we know about describing minerals through learning?

Shape, color, streaks, gloss, transparency, softness and hardness, touch

2. Did you know other ways to observe and describe minerals through learning?

Use a magnet to absorb it and weigh it with your hands to know the weight.

3. Do we know how geologists identify ores?

Field observation Observation with a microscope Reference materials and illustrations

Keywords: Free download of Chinese PPT courseware for the second volume of the fourth grade of the textbook version, facing several unknown minerals PPT download, rocks and minerals PPT download, .PPT format;

For more information about the PPT courseware "Rocks and Minerals Face Several Unknown Minerals", please click the Rocks and Minerals PPT Faces Several Unknown Minerals PPT tab.

"Facing Several Unknown Minerals" Rocks and Minerals PPT:

"Facing Several Unknown Minerals" Rocks and Minerals PPT Part One: Review and Communication What methods have we learned to observe and describe rocks and minerals? Observation methods: Look, touch, knock, engrave, drop hydrochloric acid... Face several unknown minerals...

"Facing Several Unknown Minerals" Rocks and Minerals PPT Courseware 3:

"Facing Several Unknown Minerals" Rocks and Minerals PPT Courseware 3 What methods of observing and describing rocks and minerals have we learned? Let’s review it together! Observation methods include looking (you can use tools such as magnifying glasses and microscopes), touching, carving, knocking, and dropping hydrochloric acid.

"Facing Several Unknown Minerals" Rocks and Minerals PPT Courseware 2:

"Facing Several Unknown Minerals" Rocks and Minerals PPT Courseware 2 Learning Objectives: Comprehensively use methods such as observing mineral colors and streaks, testing mineral hardness, observing mineral transparency and gloss, and searching for information to study unknown minerals and write Draw out feature cards. since..

File Info

Update Time: 2024-09-30

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

Preview