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Unit Test (Solutions): Rhythms of Nature | Our Wondrous World Class 5 - New NCERT PDF Download

Time: 45 Minutes
M.M.: 20
Attempt all questions.
Question numbers 1 to 6 carry 1 mark each.
Question numbers 7 to 9 carry 3 marks each.
Question number 10 carries 5 marks.

Q1. The globe is a model of –
(a) 
Moon
(b) 
Earth
(c) 
Sun
(d) 
Star

Ans: (b) Earth
Unit Test (Solutions): Rhythms of Nature | Our Wondrous World  Class 5 - New NCERTEarth

Q2. Fill in the blanks:
In India, the six seasons are Vasanta (Spring), Grishma (Summer), Varsha (Monsoon), Sharad (Autumn), Hemant (Pre-winter), and ______ (Winter).

Ans: Shishir

Q3. True or False:
The Sun moves around the Earth in one day.

Ans: False

Q4. Name any sign in nature that farmers might use to know rain is coming.

Ans: Koel singing (or ants carrying eggs to higher ground)

Q5. Match the following:
Unit Test (Solutions): Rhythms of Nature | Our Wondrous World  Class 5 - New NCERT

Ans: 
Unit Test (Solutions): Rhythms of Nature | Our Wondrous World  Class 5 - New NCERT

Q6. Which activity helps students observe seasonal patterns?
(a) Single-day quiz
(b) Seasons’ journal
(c) One-time field trip
(d) Only textbook reading

Ans: (b) Seasons’ journal

Q7. Write three ways seasons influence people’s daily lives.

Ans: 1. Clothes (cotton in summer, wool in winter).
2. Food (seasonal fruits/vegetables, festive foods).
3. Activities (planting/harvesting, outdoor/indoor events).

Q8. Explain the torch-and-globe demonstration that shows day and night in three steps.

Ans:Unit Test (Solutions): Rhythms of Nature | Our Wondrous World  Class 5 - New NCERT

1. Shine a torch (Sun) at one side of the globe (Earth) to show day; the opposite side is night.
2. Rotate the globe slowly; different places move into/out of light.
3. Concludes that Earth’s rotation causes day and night.

Q9. Why can winter in Kerala feel different from winter in Kashmir? Give three reasons.

Ans: 1. Different latitudes and altitudes (Kerala low and coastal; Kashmir high mountains).
2. Proximity to the sea moderates temperature in Kerala.
3. Snowfall and much lower temperatures in Kashmir due to the Himalayan climate.

Q10. Create a mini season’s chart for your region with observations for any three themes (plant life, birds/animals, air/heat/light, water bodies, human activities). Present one season in detail.

Ans: Example (Monsoon):

  • Plant life: New leaves, many flowers; rapid growth.
  • Birds/animals: More insects; birds are active; frogs croaking.
  • Air/heat/light: Cloudy, humid; lower daytime heat; earlier sunsets.
  • Water bodies: Ponds fill; streams flow; puddles form.
  • Human activities: Raincoats/umbrellas; paddy planting; monsoon festivals.

Mini Season chart (all seasons)

Unit Test (Solutions): Rhythms of Nature | Our Wondrous World  Class 5 - New NCERT

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FAQs on Unit Test (Solutions): Rhythms of Nature - Our Wondrous World Class 5 - New NCERT

1. What are the main themes explored in "Rhythms of Nature"?
Ans. The main themes in "Rhythms of Nature" include the interconnectedness of living organisms and their environment, the cyclical patterns observed in nature, and the importance of biodiversity. The article emphasizes how seasons, weather changes, and life cycles of various species influence each other, highlighting the delicate balance that sustains ecosystems.
2. How does the concept of biodiversity relate to the rhythms of nature?
Ans. Biodiversity refers to the variety of life forms within an ecosystem. In the context of "Rhythms of Nature," biodiversity is crucial as it contributes to the resilience of ecosystems. Different species play specific roles, and their interactions create a web of life that ensures stability. The article explains how diverse ecosystems are better equipped to handle changes and disruptions, maintaining natural rhythms.
3. What role do seasons play in the rhythms of nature?
Ans. Seasons play a vital role in the rhythms of nature by dictating the behaviors and life cycles of various organisms. The article outlines how changes in temperature and daylight affect plant growth, animal migration, and breeding cycles. Understanding these seasonal changes helps us appreciate the timing and synchronization of life in natural environments.
4. Can you explain how human activities disrupt the natural rhythms of nature?
Ans. Human activities such as deforestation, pollution, and urbanization disrupt the natural rhythms of nature by altering habitats and the relationships between species. The article discusses how such disruptions can lead to loss of biodiversity, changes in climate patterns, and the extinction of species, ultimately affecting the stability of ecosystems.
5. Why is it important to study the rhythms of nature?
Ans. Studying the rhythms of nature is important because it helps us understand the complex interactions within ecosystems and the impact of environmental changes. The article emphasizes that this knowledge is essential for conservation efforts, sustainable development, and ensuring the health of our planet for future generations. Recognizing these rhythms can guide us in making informed decisions that support ecological balance.
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