This is a simple one-hour lab allowing students to create mixtures and compare their properties to the properties of pure substances. They will learn pure substances, compounds, elements, heterogeneous and homogeneous mixtures, solutions, and suspensions. They’ll also use magnets to separate iron filings from a mixture, and shine a light through solutions and suspensions to observe the Tyndall Effect.
Each team will need a 500mL beaker and 6 smaller beakers to serve as test tube holders. You may substitute cups or other containers to hold the test tubes. The lab was designed for ELL/ESL high school students but can be used for 6th to 12th grade.
Metals (copper wire, aluminum foil, other examples of metal elements)
6 test tubes and a test tube rack per team
1 500mL beaker per team
6 smaller beakers or cups
Spoons (to scoop powders and metals)
Light (a beam is needed; use small flashlight, finger light, laser, or similar)
Printout of the diagram (found on last page)