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Textbook Solutions: The Sun, Earth and Moon— Light and Shadows | Eureka Plus Class 5: Book Solutions, Notes & Worksheets PDF Download

I.  Choose the correct answer in each of the following questions

Q1: A dark shadow is formed when the object is:
Ans: 
Opaque


Q2: A toy car that allows some light to pass through it is made up of:
Ans: 
Translucent material


Q3: A solar eclipse occurs when the:
Ans:
Moon is between the Earth and the sun


Q4: A lunar eclipse occurs when the:
Ans:
Earth is between the sun and the moon


Q5: A lunar eclipse always occurs on a:
Ans: 
Full moon night


II. Tick (✓) the true sentences and correct the false ones:

Q1: We cannot see things in the absence of light.
Ans: True


Q2: Light always travels in a straight line.
Ans: True


Q3: A translucent object does not form a shadow.
Ans: 
False


Q4: A transparent object blocks light completely.
Ans: False


Q5: On a new moon day, we cannot see the moon in the sky.
Ans: True

III. Answer the following questions in one sentence

Q1: Why does an opaque object form a dark shadow?
Ans:
An opaque object forms a dark shadow because it blocks light completely.


Q2: What makes the moon appear bright?
Ans: 
The moon appears bright because it reflects the light from the sun.


Q3: Does the solar eclipse occur on every new moon day?
Ans: 
No, a solar eclipse does not occur on every new moon day.


Q4: Why does a solar eclipse occur on a new moon day?
Ans:
A solar eclipse occurs on a new moon day because the moon comes between the Earth and the sun.


Q5: When does the moon appear reddish?
Ans:
The moon appears reddish during a lunar eclipse.


Q6: Which Apollo mission landed on the moon for the first time?
Ans: 
The Apollo 11 mission landed on the moon for the first time.


IV. Give reasons

Q1: We cannot see in the dark.
Ans:
We cannot see in the dark because there is no light to reflect off objects and reach our eyes.


Q2: The moon does not have its own light, but it appears bright.
Ans: 
The moon appears bright because it reflects sunlight.


Q3: Lunar eclipse occurs only on a full moon night.
Ans:
A lunar eclipse occurs only on a full moon night because the Earth comes between the sun and the moon.


Q4: During a solar eclipse, the moon's shadow falls on some parts of the Earth.
Ans:
During a solar eclipse, the moon comes between the Earth and the sun, blocking sunlight and casting its shadow on some parts of the Earth.


Higher Order Thinking Skills (HOTS)

Study the pictures and answer the questions.

Q1: In which situation can there be a lunar eclipse?
Ans:
C (The Earth is between the sun and the moon)


Q2: In which situation can there be a solar eclipse?
Ans:
A (The moon is between the Earth and the sun)


Q3: In which situation will it be a full moon?
Ans:
B (The moon is on the opposite side of the sun, fully visible from Earth)


Q4: In which situation will it be a new moon?
Ans:
A (The moon is between the sun and the Earth, dark side facing the Earth)

The document Textbook Solutions: The Sun, Earth and Moon— Light and Shadows | Eureka Plus Class 5: Book Solutions, Notes & Worksheets is a part of the Class 5 Course Eureka Plus Class 5: Book Solutions, Notes & Worksheets.
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FAQs on Textbook Solutions: The Sun, Earth and Moon— Light and Shadows - Eureka Plus Class 5: Book Solutions, Notes & Worksheets

1. What are the roles of the Sun, Earth, and Moon in creating light and shadows?
Ans. The Sun is the primary source of light in our solar system. When sunlight reaches the Earth, it illuminates everything around us. The Earth and the Moon can block this light, creating shadows. For example, during the day, the Earth casts a shadow on the Moon, causing a lunar eclipse. Similarly, when the Moon passes between the Earth and the Sun, it blocks sunlight and creates a solar eclipse.
2. How do shadows change during the day?
Ans. Shadows change in size and direction throughout the day due to the movement of the Sun across the sky. In the morning, when the Sun rises in the east, shadows are long and stretch towards the west. As the Sun moves higher in the sky, shadows become shorter. At noon, when the Sun is at its highest point, shadows are the shortest. In the evening, as the Sun sets in the west, shadows grow longer again.
3. What is a lunar eclipse and how does it occur?
Ans. A lunar eclipse occurs when the Earth comes directly between the Sun and the Moon, blocking sunlight from reaching the Moon. This can happen only during a full moon. During the eclipse, the Moon may appear reddish due to the Earth's atmosphere filtering and bending some sunlight, which then reaches the Moon. This phenomenon is often referred to as a "Blood Moon."
4. What causes a solar eclipse?
Ans. A solar eclipse occurs when the Moon passes directly between the Earth and the Sun, blocking some or all of the Sun's light from reaching the Earth. This can only happen during a new moon. There are different types of solar eclipses: total, partial, and annular, depending on how much of the Sun is obscured by the Moon.
5. Why do we see different phases of the Moon?
Ans. The different phases of the Moon are caused by its position relative to the Earth and the Sun. As the Moon orbits the Earth, different parts of it are illuminated by the Sun. This creates phases such as the new moon, crescent, first quarter, gibbous, and full moon. Each phase represents a different amount of sunlight reflecting off the Moon as seen from Earth.
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