Translation: Welcome to our planet. We think you have asked for a clear liquid. We have brought you all the liquids on our planet that fit that description. Please, you are welcome to use our laboratory to discover if any of them suit your life form. Use this laboratory notebook, write only on the white pages.

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Goal: determine which of the liquids presented to you, if any, are, in fact, water. You need to be certain enough to bet your life on it.

Process: plan three investigations you can do with the liquids. Write one on each of the next three slides. (If you run out of space, make the font smaller)

Investigation #1 [title]

Materials needed:

Procedure:

What it will show:

Investigation #2 [title]

Materials needed:

Procedure:

What it will show:

Investigation #3 [title]

Materials needed:

Procedure:

What it will show:

Stop here, on the first day.

Experimental results

What you have learned from the experimental results

What you need to do next

What you have learned from other groups

Actions for your second day of experimentation (this will probably be your last chance in the laboratory).

Stop here, on the second day.

Experimental results

What you have learned from the additional experiments

What you have learned from other groups

Your recommendation: choose one, and add explanation

We think we should drink sample # ______, because...

We don’t think any of the liquids are safe to drink and we should go back home as quickly as we can!

We need further experimental evidence, and suggest...