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Crush up the rock salt - PowerPoint PPT Presentation


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1. 2. Crush up the rock salt. Add the rock salt to 50 cm 3 of water and stir for 2 minutes. 3. 4. Heat for 5 minutes and then cool for 5 minutes (TAKE CARE). Filter it. 5. Weigh an empty evaporating basin and write the mass down. 6.

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Presentation Transcript
slide1

1

2

Crush up the rock salt

Add the rock salt to 50 cm3 of water and stir for 2 minutes

3

4

Heat for 5 minutes and then cool for 5 minutes (TAKE CARE)

Filter it

slide2

5

Weigh an empty evaporating basin and write the mass down.

6

Pour the liquid into the evaporating basin. Stand it on a piece of paper with your name on the window sill.

Clear up and then…

Explain why you did each step in the method.