Students from the 2nd Primary School of Komotini conducted an experiment to determine whether various materials dissolve in water. They made predictions about sugar, salt, oil, lentils, coffee, and flour, then tested each material by adding it to water and stirring. Based on their observations, the students concluded that sugar, salt, and coffee dissolved in water, while oil, lentils, and flour did not dissolve despite flour appearing to at first.

1. E-twinning programm
“I’m trying, exploring,discovering”
Water experiments
2st week : Water Soluble & Insoluble
materials
2o Nipiagogeio Komotinis

2. Do these materials dissolve in water or
not?

3. First we made assumptions and wrote
them in a paper

4. Then we added each material in water
and stirred with a spoon.
Conclusion
1. Sugar
dissolves in
water

5. Conclusion
2. Salt dissolves in water

6. Conclusion
3. Oil does not dissolve
in water

7. Conclusion
4. Lentils do not dissolve in water

8. Conclusion
5. Coffee dissolves in water and changes the
colour of it

9. Conclusion
6. Flour does not dissolve in water although it
seems dissolving first.

10. Then we wrote our conclusions