"Interesting Magnet" PPT

Description

Qingdao edition third grade science volume 2, interesting magnet PPT

Part 1: Guess the introduction content

Take a guess

A creature with a strange temper and a special love for steel.

If you encounter them, stick them together and don't pull them apart.

think about it

The magnets in the picture have different shapes. Look carefully. Are there any similarities between them?

All magnets are divided into south and north poles, represented by the letters S and N respectively, and distinguished by obvious blue and red colors. "N" represents the North Pole and "S" represents the South Pole; red represents the North Pole and blue represents the South Pole.

Interesting magnet PPT, part 2: classroom games

Have fun: Find friends for magnets

magnet friends

Nails, paper clips, pencil cases, knives, etc.

Objects that cannot be attracted

Chalk, textbook, ballpoint pen, eraser, etc.

Experimental results

Iron materials are attracted by magnets

Interesting Magnet PPT, Part 3: Properties of Magnets

1. Magnets can attract iron materials;

2. The magnet has strong magnetic force on both sides and small magnetic force in the middle;

What else do you know about magnets? What else would you like to explore?

Work in groups and test your guesses together!

Do it

Experiment content:

①The magnet indicates north and south

② Like poles of magnets repel each other and opposite poles attract each other.

Experimental requirements:

Based on the experimental report sheet received by the group, design and complete the exploratory experiment and report the experimental results.

Magnet attracts iron through objects

My guess: Magnets can attract iron through objects

My plan: Place the magnet in the hole in the table and try to use the magnet in the hole to attract the paper clips on the table.

My discovery: The paper clips on the table can move with the movement of the magnet, and the magnet can attract iron through objects.

Interesting Magnet PPT, Part 4: Summary and Expansion

Class summary

1. The law of interaction between magnetic poles is: the same magnetic pole ______, different magnetic poles ______.

2. The end of the magnet's guide is called the South Pole, represented by ______; the end pointing north is called the North Pole, represented by ______.

3. Iron filings and charcoal powder are evenly mixed together. How can they be separated quickly?

4. A paper clip fell into a cup with water. Can you fish it out without moving the cup or touching the water?

extracurricular development

Do magnets interfere with electromagnetic waves? Use your time after class to do an experiment and explore it!

Keywords: Qingdao version third grade science PPT courseware for the second volume free download, interesting magnet PPT download, .PPT format;

For more information about the "Interesting Magnet" PPT courseware, please click on the "Interesting Magnet PPT" tab.

"Interesting Magnet" PPT courseware:

Qingdao version of the second volume of third grade science, interesting magnet PPT courseware, the first part of the content: magnets, various magnets, hoof magnets are also called U-shaped magnets, ring magnets, bar magnets, cylindrical magnets, and many other kinds of magnets. Hey, students, let’s continue studying after class...

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Update Time: 2024-10-20

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

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