Class 4 EVS Chapter 10 Our Sky – Extra Questions with Answers

Extra practice questions for Class 4 EVS Chapter 10 (Our Sky), beyond the textbook. These Class 4 EVS Chapter 10 important questions are handy for quick practice.

Very Short Answer Questions

Q1. What do we see in the sky mainly during the day?
Ans: The sun.

Q2. Why do we have day and night?
Ans: Because the Earth spins on its axis.

Q3. What do we call the different appearances of the moon over about a month?
Ans: Phases of the moon.

Short Answer Questions

Q4. Explain why the sun appears to move across the sky during the day.
Ans: The sun appears to move because the Earth is rotating on its axis, not because the sun itself is moving around the Earth.

Q5. Why can we usually see more stars on a clear night than on a cloudy one?
Ans: Clouds block our view of the sky, so on a clear night without clouds, more stars become visible.

Higher-Order Thinking Question

Q6. If it is daytime where you live, is it also daytime everywhere else on Earth at that moment? Explain.
Ans: No. Since the Earth is round and spins on its axis, only the side facing the sun experiences day at any given moment, while the opposite side experiences night at the same time.

Written by Satish

NCERTBooks.org is an independent educational resource run by a small team focused on making official NCERT textbooks easy to find, read, and download for students, parents, and teachers across India. We are not affiliated with NCERT or the Ministry of Education -- we organise publicly available NCERT content by class and subject, verify links against official sources, and build tools (like our in-browser reader) that make studying more convenient. Every guide we publish is written and reviewed by our team based on the actual NCERT curriculum and syllabus.