CLASS 7 · SCIENCE · CHAPTER 1
Student-friendly sample responses for the chapter’s opening discussion and its question-making activity.
5 worked answers · short steps first, explanations when you need them
Textbook pages 1–6
Question Activity 1.1
Possible questions: What made chewing hard? What can soften strong tea? What helps on a wet hike? How many wheels are on six bicycles and six tricycles?
Answers may vary; each question should sensibly lead to its given answer.
Question Introduction
Observe → ask → investigate → use evidence → improve explanations.
Science is a continuing process of asking questions and checking ideas with evidence.
Question Introduction
Plant growth connects biology (living parts), chemistry (water and nutrients), and physics (light and energy).
Different science areas work together to explain real-world questions.
Question Introduction
Notice something, then ask a testable “how” or “why” question about it.
Many answers are possible; questions should come from careful observation.
Question Introduction
Record the result honestly, check or repeat the test, and revise the idea using evidence.
An unexpected result is a reason to investigate further.