Due to the external atmospheric pressure. Initially the pressure inside the can is balanced by the atmospheric pressure. But as the air is removed from inside, the external pressure dominates.
Answer:
subatomic particles, protons and neutrons
Explanation:
the nucleus contains two types of subatomic particles which it protons and neutrons.
The answer is "Contextual."
Answer: By providing opportunity to promote further questioning and thinking.
Explanation: In discovery Science, the major thing we do is to think about what we are discovering, then ask questions which our discoveries will solve. Because the teacher has given a platform where each group should think about what they have discovered, and then share it with the rest of the class. Any member of the class has an opportunity to ask question, about what the group has discovered. This makes it a discovery Science, because thinking and questioning has been involved.
The correct answer to this is Epicureanism: this philosophy was based on the teachings of Epicurus, who believed that the greatest aim and the biggest pleasure is happiness. His way of achieving happiness was through knowledge and modesty - this would liberate one from fear.
