Physical and Chemical Properties Lab

Objective: To describe the physical and chemical properties of matter based on the changes they undergo.

Observation: A white powder is found in an unlabeled jar in the cupboard. You have narrowed the field down to three possibilities.

Question: Which chemical is the unknown substance?

Hypothesis: Write three hypotheses.

Methods: Use the dropper plate to mix vinegar, water, iodine, phe and three known powders: salt, baking soda, and cornstarch. Record your exact methods.

Results: What are the Physical and Chemical Properties of each powder before and after each test? Create a table that describes your results.

Conclusion: Write up your conclusions to present to the class why you think the substance is what you say it is.