Let's experiment

 Nautilus while traveling fell on an iceberg. The fuel tank was opened and spilled into the sea. An oil slick formed. This is very bad because the marine world is in danger. Our friends have to clean the sea but we do not know how ... But they are here to help them. The following experiment will teach us how.

After the implementation of the experiment our young students were impressed by how easily the sea can be contaminated and how difficult it is to clean. So they came to the conclusion that all people should make sure the sea is clean in every way ...