SCIENCE CLASS 10 CHAPTER 2 ALL ACTIVITIES OBSERVATION PLEASE!! 24 Points and i will mark the answer brainliest!
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1 )activity:to test the presence of water vapor & heat in exhaled air. Observation:we cannot swallow while breathing.
2)activity:to observe changes during combustion of sugur.Observation: CO2 released ,changes the lime water to milky white.
3)activity:to prove CO2 is evolved during respiration. Observation: after 2 days the lime water changes to milky white.
4)activity: to show that heat is liberated during respiration. Observation:constant increase in temperature.(above graph is observation of 4th activity)
Hope this helps u....
2)activity:to observe changes during combustion of sugur.Observation: CO2 released ,changes the lime water to milky white.
3)activity:to prove CO2 is evolved during respiration. Observation: after 2 days the lime water changes to milky white.
4)activity: to show that heat is liberated during respiration. Observation:constant increase in temperature.(above graph is observation of 4th activity)
Hope this helps u....
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Activity 2.12 class 10th science
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