Class 4 Evs - HARYANA
Our Sky
The chapter 'Our Sky' from the Class 4 EVS textbook 'Our Wondrous World' introduces young learners to the magnificent sky above us. Students explore celestial bodies visible during the day and night, primarily the sun, moon, and stars. The chapter explains why the sun looks big and hot because it is closest to us, how the moon changes its shape over a month (phases of the moon), and why stars twinkle at night even though they are huge balls of fire. For Haryana (BSEH) board exams, this chapter is crucial as it builds foundational geographical and scientific awareness about our solar system.
Start Learning FreeKey Concepts
The Sun
A giant ball of burning gases that gives us heat and light during the day, making life on Earth possible.
The Moon
Earth's natural satellite that does not have its own light; it shines by reflecting sunlight and changes its shape daily.
Stars
Huge, glowing bodies of gas in the sky that twinkle at night because they are very far away from us.
Day and Night Sky
The day sky is bright and dominated by the sun, while the night sky is dark and filled with the moon and twinkling stars.
Phases of the Moon
The different shapes in which the moon appears to us over a month, ranging from a thin crescent to a full round moon.
Important Formulas
Board Exam Info
In the Haryana (BSEH) Class 4 EVS exams, this chapter typically carries around 4 to 6 marks. Common question types include fill-in-the-blanks, matching the following (e.g., matching sun with day and stars with night), short answer questions about why stars twinkle, and drawing or identifying phases of the moon.
Frequently Asked Questions
Why do stars look so small if they are huge?
Stars look very small because they are situated at a very large distance from the Earth.
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 can't we see stars during the day?
We cannot see stars during the day because the bright light of the sun hides their faint glow.
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