Matter: Physical Properties: Separating a Mixture Lab Activity
This resource was created to reinforce physical properties of matter and helps students learn to write their own lab procedure. Students work together in groups to separate a mixture of iron, sand, sulfur, and salt. Lesson plan, handouts, pictures, and notes included for teacher. Entire lab takes minimal 2 class periods, one for planning and one for doing the activity. The lab write up is VERY different than a normal lab. To be honest, I was a little hesitant to try the lab this way (with 7th graders) and was pleasantly surprised by the results. Rather than answer questions or record specific observations during the activity portion, I had students write 6 statements explaining what they did, and accompany each statement with a drawing, showing what they did. My students REALLY responded to this. I will definately be doing this again. I included pictures from the set up, making the mixture, best practices in separating the mixture, and tips for along the way.
Things you need for the lab: iron filings, powdered sulfur, sand, salt, bunsen burner/ring stand, beakers, water, funnels, coffee filters, magnets, plastic sandwich bags, digs or plastic spoons.
This resource is now part of my Matter Bundle
, so if you already purchased that one, just re-download!
**I would not do this activity in a grade below 7th. Always wear safety goggles when using Bunsen burners.**
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