This is a fun activity to get students thinking about the properties of acids and bases based on their prior knowledge. Then using what they know, can they figure out the rest of the properties?
I like to do this activity as a friendly competition and see how many each pair of students can answer correctly. Before the students place items into the Venn diagram, I ask them to look at the properties and write a red “A” next to the property if they think it belongs to an acid, a blue “B” if they think it belongs to bases, and “AB” if it belongs to both categories.
Once they have completed categorizing the properties on their own, have each student share their answers with their seat partner. What was the same? What was different? Have them discuss their reasoning for each answer and try to come to a consensus. (You can add an additional step by asking partners to compare answers with another set of partners.) When they are ready, reveal each answer, one at a time, and discuss. Students will write (or glue in) each property into the Venn diagram.
Please click on the tags below to find additional lessons on Acids, Bases, and pH.
I use this activity as an introduction to my minerals and mining unit. Students learn the 5 properties of minerals (SNIFC) and apply them to a variety of items to categorize each item as either a mineral or non-mineral.
I also have the slides in a pdf format if you would like to have the students sort the items first, then discuss each item and why they think it is or isn’t a mineral. Then, they can view the answers afterwards.
I used this activity last week with my 6th graders and I was happy with how the activity went. Students were engaged, challenged, and made great observations about the planets. They came up with a variety of ways to organize the planets into categories based on data from the fact cards.
It was challenging to come up with categories that neither student had used yet once they met with their 3rd partner. This lead to longer discussions and deeper thinking between each pair, which lead to categorizing the planets in categories that were less obvious at first.
Students worked at their own pace and let me know when they needed a new partner. This staggered the pairings and allowed both the students who needed more time and the students who worked quickly to work at a pace that was comfortable for them. Students also enjoyed trading partners and changing seats.