E-twinning programm “I’m trying, exploring,discovering”

Water experiments

3rd week : Sink or float to water and salted water ?

2o Nipiagogeio Komotinis

Do these materials sink or float to water ? What does it happen to salted

water?

First we made assumptions, wrote them in a paper and then did the experiment

Then we added a coin to water

Conclusion 1. Coin is sinking to water

Conclusion 2. Paperclip is sinking to water

Conclusion 3. The empty plastic bottle is floating to water.

Conclusion 4. Cork is floating to water

Conclusion 5. Wood is sinking to water

We drew in a table what happened.

What did happen when we throw the above materials to salted water?

The wood is floating now