- On the 29th of January we made a rain gauge in class. We observed a powerpoint presentation on rain gauges and we discussed their purpose and how they work.
- We cut 2 litre bottles about ¼ from the top. We used the top as a funnel and stuck it into the bottle.
- We placed the rain gauge in a red bucket and surrounded it with stones to support it and ensure it didn’t fall over. We placed the bucket with the rain gauge in the field and we were careful to place it in an open area away from any shade/shelter.
- Seán and Emma checked the rain gauge for water each day. They poured the water from the rain gauge into a measuring jug. They then divided the amount of millilitres by 9.2 to convert it into millimetres. Rainfall is always measured in millimetres. We recorded the information on our rain gauge recording chart.
- So far we have completed two full weeks. We measure the rainfall each day and record our findings. On a Monday we must divide our answer by three because this measurement is for the entire weekend. In week 1 we had a total rainfall of 10.9mm and in week 2 we had a total rainfall of 24.25 mm. We are nearly finished week 3 and we are expecting less rainfall than last weeks total as this week has been quite dry.
- We drew graphs in class to show the difference between week 1 and week 2.
- · We also drew graphs in class to show the difference each day in week 2.
Wednesday, 9 April 2014
Measuring rainfall in millimetres
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment