Names in group: Aim (what are you trying to do?) Apparatus

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Presentation transcript:

Names in group: Aim (what are you trying to do?) Apparatus Method (draw a picture to show what you will do in each step) Step 1 Step 2 Step 3 Step 4

Weight of rock salt (g) Weight of pure salt (g) Method (how are you going to do your experiment?) How will you make your experiment successful? How will you make your experiment accurate and reliable? Was your experiment successful? Why? Weight of rock salt (g) Weight of pure salt (g)

Questions Rock salt is a mixture. What does this mixture contain? Why do you think you ground up the rock salt? (step 1) What happened to the salt when you added the water? (step 2) Why did the filter paper go brown? (step 3) What happened to the water in step 4? The salt at the end of step 4 is pure. What does this mean? Group marks Working well as a group Practical task Write-up Questions Total (out of 20)