Class 4 Evs - WEST-BENGAL
Our Sky
The chapter 'Our Sky' from the Class 4 EVS text 'Our Wondrous World' introduces young learners to the wonders visible above us during the day and night. Students explore the sun as our primary source of light and heat, learn why stars twinkle and appear small, and understand the different phases of the moon. This chapter builds a strong foundational understanding of natural astronomy, helping students observe the sky with curiosity. In West Bengal Board (WBBSE) examinations, questions from this chapter test basic observational skills and factual knowledge through short-answer questions and fill-in-the-blanks.
Start Learning FreeKey Concepts
The Sun
The sun is a huge ball of burning gases that gives us light and heat during the day, making life possible on Earth.
Day and Night Sky
During the day we see the bright sun, while at night the sky is filled with twinkling stars and the moon.
The Moon
The moon is a natural satellite of the Earth that does not have its own light; it shines by reflecting sunlight and changes its shape daily.
Stars
Stars are huge glowing heavenly bodies that look very small because they are situated at a very great distance from Earth.
Phases of the Moon
The different shapes of the moon seen from Earth over a month are called phases, such as the full moon and new moon.
Important Formulas
Board Exam Info
In West Bengal (WBBSE) Class 4 EVS examinations, 'Our Sky' typically carries around 4 to 6 marks. Common question types include fill-in-the-blanks, one-word answers, short descriptive questions about the sun and moon, and matching columns.
Frequently Asked Questions
Why do stars look so small?
Stars look very small because they are situated at a tremendous distance away 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 we not see stars during the day?
We cannot see stars during the day because the bright light of the sun overpowers the faint light coming from the distant stars.
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