Unit 3: Environmental managers - Investigating carbon dioxide monitoring

In this session we looked at carbon dioxide monitoring. We set up an investigation to answer this question: How might high carbon dioxide concentrations affect seawater and sea life?

In the investigation we tested the pH of 4 samples (distilled water, carbonated water, salt water, vinegar) and then looked what happens when crushed shells are added:

We are going to leave our experiment for a week to see the long term effects.

Unit 3: Geologists: investigating rock porosity

Dense and porous rock formations can be used to permanently store carbon dioxide underground. We started the session by looking at different types of rocks and writing down observations:

We then chose sandstone to check its porosity:

 

Here are our findings:

Testing rock porosity – sandstone

Sample number	Mass before (g)	Mass after  (g)	Difference  (g)
1	68.0	68.7	0.7
2	60.3	64.6	4.3
3	79.8	85.5	5.7
4	54.2	58.1	3.9
5	72.8	78.3	5.5
6	82.6	88.8	6.2
7	38.7	41.3	2.6
8	27.2	27.9	0.7
9	88.8	93.7	4.9
10	53.8	57.9	4.1