Problem: We see a title screen for the video. We then see little boys playing soccer in a couple of gymnasiums. we

Answer: watch the boy in the white shirt score a goal.

Problem: News reporters are seen talking at the news desk with a correspondent at another location. He spoke with a woman who was spraying a child with suntan lotion. they

Answer: show a doctor who discusses the risks of cancer from sun exposure before going back to the correspondent with the mother at the park.

Problem: How to do well in any board chemistry exam
Find a good teacher to help you understand and memorize the textual part of n.c.e.r.t book.
A beginner cannot directly jump to the chapter and learn the text. Although some chapters are a bit easy and one can do them on his own.
Answer: Ask your teacher to introduce you to the topic and the main concepts. After you understand the main topics, tackle the subtopics as this way you won't confuse concepts.