Question 52
You will need: two identical glasses, water, a permanent marker, a measuring cup or cylinder
- Measure and pour 100 ml of water into both glasses.
- Mark the level of the water in the glasses with a permanent marker.
- Put one glass in a warm place. Put the other glass in a cool place. Leave the glasses for two days.
- Predict the results you expect to obtain. Say why you made this prediction.
- Mark the level of water in both glasses after two days.
Suggest a way you can improve the investigation to find out how much water evaporated from both glasses.
- Measure and pour 100 ml of water into both glasses.
- Mark the level of the water in the glasses with a permanent marker.
- Put one glass in a warm place. Put the other glass in a cool place. Leave the glasses for two days.
- Predict the results you expect to obtain. Say why you made this prediction.
- Mark the level of water in both glasses after two days.
Suggest a way you can improve the investigation to find out how much water evaporated from both glasses.
