"Dissolution" Wonderful Water PPT Courseware 2

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"Dissolution" Wonderful Water PPT Courseware 2

Experiment 1: Observe the changes of salt in water

1. Materials: water, salt, beaker, stirring rod

2. Experimental requirements:

1) Each group is operated by the experimenter, and other members observe carefully. Be careful not to speak loudly and stay quiet.

2) Observe carefully in the order of "when not put in water", "when just put in water", "stirring for a while", and "after stirring for a long time".

3) Fill out Record Form 1 carefully.

Experiment 2: Do other objects dissolve in water?

Materials: stones, chalk, washing powder, eraser

Experimental requirements:

1) Each group is operated by the experimenter, and other members observe carefully. Be careful not to speak loudly and stay quiet.

2) During the experiment, each member observes carefully, and the recorder carefully records the experiment.

3) After the experiment, organize the observation results and draw conclusions about which materials are easily soluble and which materials are not easily soluble. And carefully fill in the Experiment Record Form 2.

How to speed up the dissolution of rock sugar?

Remember: scientific inquiry is never-ending. As long as you are good at thinking and often conduct experiments, you will definitely make more discoveries!

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Update Time: 2024-11-19

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

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