CBSE Class 6 Social Science Oceans and Continents Worksheet Set A

Answer in words.

Question. Name the oceans in terms of their size.
Answer: Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, Arctic Ocean

Question. Give names of two parts of the Indian Ocean.
Answer: Arabian Sea, Bay of Bengal

Question. Give names of natural disaster.
Answer: Earthquake, Tsunami, Hurricane, Cyclone, Flood, Drought

Question. Name the sources of freshwater be found on Earth.
Answer: Rivers, Lakes, Groundwater, Glaciers, Ice caps

Give reason.

Question. Why is ocean water unfit for consumption by humans?
Answer: Ocean water is unfit for consumption by humans due to its high salt content, which can dehydrate the body.

Question. Why did oceans’ flora called “the planet’s lungs”?
Answer: Oceans are often called "the planet's lungs" because they produce oxygen through photosynthesis by marine plants and algae.

Give One Word Answer.

Question. The smallest continent on Earth in terms of size. - ________________
Answer: Australia

Question. The smallest oceans on Earth. - ________________
Answer: Arctic Ocean

Question. A continent has the largest population - ________________
Answer: Asia

Question. A landmass surrounded by water on all sides. - ________________
Answer: Island

Question. On what date is World Oceans Day celebrated? - ________________
Answer: June 8

Very Short Answer Questions

Question. What are the names of the oceans?
Answer: a) Pacific ocean b) Atlantic ocean c) Indian ocean d) Arctic ocean e) southern ocean

Question. What is the primary color of Earth when viewed from space?
Answer: Blue, due to the vast amounts of water.

Question. What is the primary color of Earth when viewed from space?
Answer: Blue, due to the vast amounts of water.

Question. What are Oceans?
Answer: The largest water bodies we see on the globe are called ‘oceans’.

Question. Which continent has the most land in the Northern Hemisphere?
Answer: Asia

Question. What means marine life?
Answer: The marine life definition includes all life forms (from plants to animals to small, single-celled bacteria) that are found within oceans and seas.

Question. What causes seawater to be salty?
Answer: Rivers wash salt from land into the oceans.

Question. What are the circular lines in each map called?
Answer: Parallels Latitudes are imaginary reference lines that form complete circles around the earth parallel to the equator and parallel to each other.

Question. What is the Indian Navy's motto?
Answer: "Sam noh Varunah"

Question. Arrange the continents according to their size.
Answer: Asia, Africa, south america, North america, Europe, Australia and Antarctica.

Question. What are the two important parts of the Indian Ocean on either side of India?
Answer: Arabian Sea and Bay of Bengal.

Question. Are all the oceans connected with one another, or are there separations between them?
Answer: Although we have listed five oceans, it is clear from the map that they are not really separate. The lines that divide them on the map are no more than conventions — the natural world does not follow such boundaries.

Question. Which oceans lies in northern hemisphere?
Answer: Pacific ocean, Atlantic ocean, Indian ocean and Arctic ocean.

Question. What role do clouds play in the water cycle?
Answer: They bring rain to the continents.

Question. What do you think could be the approximate proportion of water to land in the Northern Hemisphere and in the Southern Hemisphere? Discuss in groups.
Answer: The ratio of land to water for the whole earth is 1:2 and 2:3 in the northern hemisphere. The ratio of land to water in the southern hemisphere is 1:3.

Question. What environmental issue is caused by human activities in oceans?
Answer: Pollution

Question. Which two continents are often grouped together as 'Eurasia'?
Answer: Europe and Asia.

Question. Which oceans lies in southern hemisphere?
Answer: Pacific ocean, Atlantic ocean and Southern ocean.

Question. Which continent is known for its extreme cold climate and research stations?
Answer: Antarctica

Question. Why did marine environment is under threat?
Answer: Due to human activities:
a. We throw plastic waste into the oceans.
b. Overfishing

Question. What are the two main island groups in India?
Answer: Andaman and Nicobar Islands, Lakshadweep Islands.

Question. Who designed World Ocean day?
Answer: The United Nations.

Answer the following questions.

Question. Explain the role of oceans in natural disasters.
Answer: Oceans can play a significant role in natural disasters:
• Tsunamis are caused by underwater earthquakes.
• Hurricanes and typhoons form over warm ocean waters.
• Rising sea levels can lead to coastal erosion and flooding.
• Ocean acidification can harm marine ecosystems.

Question. What is the importance of oceans in regulating the Earth’s climate?
Answer: Oceans play a crucial role in regulating the Earth's climate:
• They absorb heat from the sun, moderating temperatures.
• They store carbon dioxide, helping to regulate greenhouse gas levels.
• They influence ocean currents, which distribute heat around the globe.
• They play a role in precipitation patterns.

Question. What are the major environmental issues facing the oceans today?
Answer: The major environmental issues facing the oceans today include:
• Pollution (plastic waste, oil spills, sewage)
• Overfishing and habitat destruction
• Climate change and ocean acidification
• Illegal fishing and unregulated maritime activitie