Class 4 Evs - TAMILNADU
Our Sky
The chapter 'Our Sky' in the Class 4 EVS Tamil Nadu Samacheer Kalvi syllabus introduces students to the wonders above us. It explores the sun, moon, stars, and clouds, helping children understand day and night, the shape of the Earth, and why the sky changes appearance. Students learn about natural phenomena and directions using the sun. This chapter is very important for board exams as it builds foundational science knowledge about our solar system and environment, frequently featuring in objective and descriptive questions.
Start Learning FreeKey Concepts
The Sun
A giant ball of hot glowing gas that gives us light and heat during the day, making life on Earth possible.
The Moon
A natural satellite of the Earth that does not produce its own light but shines by reflecting the sun's light, changing its shape as phases.
Stars
Huge balls of burning gas far away in space that twinkle at night and appear small because they are very distant.
Day and Night
The daily cycle caused by the Earth's rotation, where the side facing the sun has day and the other side has night.
Clouds
Tiny drops of water or ice crystals floating in the sky that bring rain to the Earth.
Important Formulas
Board Exam Info
In the Tamil Nadu (Samacheer Kalvi) Class 4 EVS examinations, 'Our Sky' typically carries around 5 to 8 marks. Common question types include fill in the blanks, matching the following, true or false, and short answer questions about the sun, moon, and stars.
Frequently Asked Questions
Why do stars not twinkle during the day?
Stars are present in the sky during the day too, but we cannot see them because the bright light of the sun hides them.
Does the moon have its own light?
No, the moon does not have its own light. It shines by reflecting the light of the sun.
Why does the sun look bigger than other stars?
The sun looks bigger because it is much closer to the Earth than any other star in the universe.
Learn Our Sky with Your AI Tutor
10 different ways to study this chapter. Free for 3 chapters per day.
Lecture
Key Points
Interactive
Quiz
Flashcards