Activity 6: Sea level rise
The rise of the sea level has different causes: Above all, melting ice masses on land and the thermal expansion of water contribute to it - melting icebergs, on the other hand, (almost) do not!
With the two experiments of this activity these phenomena can be worked out:
- Part: Is sea level rising due to melting icebergs?
- Part: Is sea level rising due to warming water?
- Description to the activity from the guide (PDF / editable word-document)
- Solution to the activity from the guide (PDF)
- DIN A3-backround text to the activity from the climate kit (all backround texts for download)
More materials like h5p-study units, videos and animations with Module - Consequences of climate change.
Video 1. Partial experiment: Melting Ice
Video 2. Partial experiment: Thermal expansion
Technical questions and didactic comments
Does the sea level not rise at all when icebergs floating on salt water melt?
Strictly speaking, sea level does rise when icebergs of fresh water floating on salt water melt, because salt water has a higher density than fresh water.
However, this halosteric sea level rise (reduction of salinity in the oceans) is of little importance compared to the thermosteric (thermal expansion) and eustatic (melting of land ice) sea level rise. More background in the Climate-Wiki.
Do you have a technical question about the experiment? Get in touch with us! We will gladly try to answer your question or forward it to an expert in our network. Answers to central or frequently asked questions will be published here.
- In the experiment on thermal expansion, an astonishing increase is obtained after only a few minutes of heating by hand.
- The experiments with melting ice, on the other hand, require a little more time. Therefore, it is recommended to start them at the beginning.
Are you missing an important reference? Please get in touch with us! We will be happy to take your suggestion and expand this compilation.