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Does air has a mass?
Does air has a mass ? වාතයට ස්කන්ධයක් තිබේද? Activity 2.2 Ø Draw a diagram of an activity to find out whether air has a mass or not. (Page 22) වාතයට ස්කන්ධයක් තිබේදැයි සෙවීමට කලහැකි ක්රියාකාරකමේ රූපසටහනක් අදින්න. Set up the balloons as shown in the picture Ø Write the observation after making a hole in one balloon and let the air out. (Page 23) ක්රියාකාරකම අවසානයේ දැකිය හැකි නිරීක්ෂණය කුමක්ද? After making a hole in one balloon observe what happens to the stick. Observation: When the air in one balloon out the stick looses its balance Conclusion: Air has a mass.
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