Fun activity

The author presents an interesting, easy to use activity to show students the effects of acids/bases on other objects. It may be a bit hard for some students to make the connections, but the... See More

The author presents an interesting, easy to use activity to show students the effects of acids/bases on other objects. It may be a bit hard for some students to make the connections, but they will be engaged and most will learn.

Acids & Bases

I am a high school science teacher. I think this lab would work if you met with your students every day. Since my school is on the block-schedule (meets every other day for 90 minutes), th... See More

I am a high school science teacher. I think this lab would work if you met with your students every day. Since my school is on the block-schedule (meets every other day for 90 minutes), this lab would be difficult to do since it requires 3 days for results to occur. I think this lab could be done in one class period but that would require pre-lab setup on you.

The title states acids and bases....

...but the activity is really about weak acids only. No bases involved. Then, the activity moves on to osmosis. The math involved in measurement and data collection with some statistical ... See More

...but the activity is really about weak acids only. No bases involved. Then, the activity moves on to osmosis. The math involved in measurement and data collection with some statistical analysis. All good math concepts, but they can be done for any investigation. The science explanation is weak. When looking at osmosis, it is important that students understand it is the diffusion of water, Not a bad activity, but I would spend time looking into other resources before I use it as a stand alone. There are truly some difficult concepts for middle school students to understand in this activity.