This is one of my favorite "cause and effect" laboratory investigations. The best part about this lab is that you can make it Very "real and relevant" for your own classroom as the observed/studied materials can be changed based on your area, what you have readily available, and what you think your students would be most interested in! This is another lab (like the "I Love Rock and Roll" lab) that requires the students to complete the initial setup, wait a few days, and then revisit their experiment a couple weeks later. The preparation is minimal, to say the least, for this lab. Have fun!
The designed PDF can be enjoyed they way it is, but a more straight forward editable word doc is included as well.
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