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Chapter 10 of 10
Flashcards

Our Sky

CBSE · Class 4 · EVS

Flashcards for Our Sky — CBSE Class 4 EVS. Quick Q&A cards covering key concepts, definitions, and formulas.

43 questions20 flashcards5 concepts
20 Flashcards
Card 1Sun and Sky

What is the brightest object in our sky?

Answer

The Sun is the brightest object in our sky. It is so bright that other stars cannot be seen when the Sun is present in the sky. The Sun gives us light and heat.

Card 2Sky Changes

How does the sky look different in the morning, afternoon, and night?

Answer

Morning sky: Orange color appears, Sun rises. Afternoon sky: Bright blue, strong sunlight. Night sky: Dark with twinkling stars, Moon and stars are visible.

Card 3Sun Movement

In which direction does the Sun appear to move during the day?

Answer

The Sun appears to move from East to West during the day. It rises in the East in the morning, comes overhead at noon, and sets in the West in the evening.

Card 4Shadows

What happens to shadows at different times of the day?

Answer

Morning shadows are long and point West. Noon shadows are short. Evening shadows are long again but point East (opposite to morning shadows).

Card 5Shadows

What is a sundial and how does it work?

Answer

A sundial is an ancient device used to tell time by looking at shadows. As the Sun moves across the sky, the shadow changes direction and length, showing different times of the day.

Card 6Moon Phases

What is Poornima?

Answer

Poornima is the full Moon when the Moon appears as a complete circle in the sky. Many festivals like Rakshabandhan and Guru Poornima are celebrated on this day.

Card 7Moon Phases

What is Amavasya?

Answer

Amavasya is the new Moon when the Moon is not visible in the sky at all. This happens periodically. Diwali is celebrated on Amavasya.

Card 8Shadows

Why do morning and evening shadows point in opposite directions?

Answer

Morning and evening shadows point in opposite directions because the Sun's position changes. In the morning, the Sun is in the East, so shadows point West. In the evening, the Sun is in the West, so s

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Frequently Asked Questions

What are the important topics in Our Sky for CBSE Class 4 EVS?

Our Sky covers several key topics that are frequently asked in CBSE Class 4 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.

Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

There are 20 flashcards for Our Sky covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.