"What changes have occurred in matter" Changes in matter PPT courseware 2

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"What changes have occurred in matter" Changes in matter PPT courseware 2

How do material changes occur?

Do substances change when they are mixed with each other?

Did the sand change after mixing? Have the beans changed?

When their mixture is separated through a sieve, does it change compared to the original?

After we heat the white sugar, the white sugar turns into black charcoal, and a new substance is produced, which is called a chemical change. For example, when sand and beans are mixed, no new substances are produced. The change of sand becoming sand and beans becoming beans is called physical change.

What changes happened to matter

Key points of this lesson:

A. Material changes can be divided into two categories: physical changes and chemical changes. The difference between them lies in whether new substances are produced.

B. Some substances undergo both chemical changes and physical changes during the change process.

choose

1. Mix the sand and beans and stir gently. Have the beans changed? ( ).

A. No obvious change B. Transformed into other substances C. The beans sprouted

2. Use the candle flame to heat the sugar in the spoon. The sugar will ( ).

A. Become liquid sugar B. Become water C. No change

3. During the process of heating white sugar with candle flame, white sugar will produce ( ).

A. Physical changes B. Chemical changes C. Physical changes and chemical changes

4. The candle first melts into candle oil during the burning process. This change belongs to ( ).

A. Physical changes B. Chemical changes C. Physical changes and chemical changes

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"What Changes Happened to Matter" PPT teaching courseware on changes in matter:

"What changes have occurred in matter" PPT teaching courseware on changes in matter Part 1: Review: What changes have you observed? Changes that only change the state, shape, size, etc. of matter without producing new matter are called physical changes. New substances are generated...

Download PPT "What Changes Happened to Matter": Changes in Matter:

"What Changes Have Happened to Matter" Changes in Matter PPT Download Part One Content: New Lesson Exploration (1) Observing Sand and Beans Experimental Conclusion: The characteristics and properties of beans and sand have not changed, sand is still sand, and beans are still beans. That is, the matter does not change. observe..

"What changes have occurred in matter" Changes in matter PPT:

"What happened to matter?" Changes in matter PPT Part 1: Mixing sand and beans Pour the sand and beans on the white paper, observe and describe their characteristics. Pour the sand in the cup into the cup with beans and mix and stir. In the mixture of sand and beans..

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Update Time: 2024-11-22

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 2 industry PPT template

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