Which of the following is the BEST example of arriving at a specific conclusion using experimentation?
1
Finding the time for digesting food by asking students to consume the same food
2
Placing a piece of jaggery on various locations inside class and observing the time taken by ants to arrive on the location
3
Understanding why a hot cup of tea cools down when you blow air over it
4
Dropping a filled bottle and an empty bottle in water to see which will float