Search Results
Showing results 1 to 3 of 3
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-701.jpg?itok=bLXGDO1W)
Shell Shifts
Source Institutions
Ocean acidification is a big issue due to the amount of carbon dioxide humans release. CO2 in the atmosphere is absorbed into the ocean thus changing its acidity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-074.jpg?itok=B5qrIWTH)
Rock Bottoms
Source Institutions
Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-149.jpg?itok=aVXlYvt5)
Breathing Blue
Source Institutions
In this activity, learners test exhaled breath for carbon dioxide and learn how to use an indicator as a simple way to measure pH.