1. Review to the problem №22 «Montgolfiere»
IYNT 2018
TEAM OF BELARUS
Reviewer :Elizaveta Bondarik

2. Statement
To heat air for a simple hot air balloon, one can even use a heater. Build such a buoyant. Explain the results for your experiments and determine important parameters.

3. Report Theory; Explanation of results Structured presentation;
STRENGTHS
WEAKNESSES
Theory;
Explanation of results
Structured presentation;
Didn’t introduce all possible parameters
Used only one volume of balloon
Volume can be measured with water (pour it inside the glove)

4. Opposition Asked about temperature (important); Time of heating;
STRENGHTS
WEAKNESSES
Asked about temperature (important);
Time of heating;
Noticed lack of comparison theory and experiment;
Noticed wrong formula and all main points of problem
Reporter couldn’t measure temperature (lack of thermometer in list)

5. Conclusions & how to improve results
Of course with thermometer, but as it wasn’t in the list of equipment we can’t say it’s a weakness;
Measure volume with water;
Speed and time of lifting;

6. Thank you for attention!