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Olympiad (Class 4) Earth and Universe — practice questions — page 2

Explore 56 free Earth and Universe questions in Olympiad (Class 4) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Earth and Universe questions and exercises with answers

Showing questions 31–56 of 56.

What mainly causes the seasons on Earth?Read the answer and worked solution →It is summer in the Northern Hemisphere. What season is it in the Southern Hemisphere?Read the answer and worked solution →In winter the Sun is low in the sky. Its rays are then:Read the answer and worked solution →Because of Earth's tilt, which thing changes during the year?Read the answer and worked solution →Many tropical places have two seasons. What are they?Read the answer and worked solution →Since ancient times, how many seasons (Ritu) are recognised in India?Read the answer and worked solution →The four seasons are spring, summer, autumn and what else?Read the answer and worked solution →On an equinox day, how do day and night compare in length?Read the answer and worked solution →Which months are the warmest in the Southern Hemisphere?Read the answer and worked solution →Through the whole year, Earth's axis keeps pointing toward which star?Read the answer and worked solution →About how many degrees is Earth's axis tilted?Read the answer and worked solution →The pull between Earth and the Moon is the main cause of:Read the answer and worked solution →The Moon looks bigger near the horizon. This is mainly:Read the answer and worked solution →What is the shape of the Moon's path around Earth?Read the answer and worked solution →The large dark patches on the Moon were made by:Read the answer and worked solution →What are the rings of Saturn made of?Read the answer and worked solution →Compared with Earth, how wide is Mars?Read the answer and worked solution →Which of these is the largest body?Read the answer and worked solution →The Northern Hemisphere tips most toward the Sun around which date?Read the answer and worked solution →In summer, where does the Sun appear at noon?Read the answer and worked solution →Why do the seasons matter so much to farmers?Read the answer and worked solution →Some animals sleep through the cold season. What is this called?Read the answer and worked solution →What helps shield Earth's surface from harmful radiation from space?Read the answer and worked solution →Io, Europa, Ganymede and Callisto are the biggest moons of which planet?Read the answer and worked solution →In which galaxy is our Solar System found?Read the answer and worked solution →After Saturn, which planet comes next going away from the Sun?Read the answer and worked solution →

Worked practice questions

What mainly causes the seasons on Earth?

  1. The tilt of Earth's axis
  2. Earth getting nearer the Sun
  3. The Moon changing shape
  4. The Sun changing size
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Correct answer: A. The tilt of Earth's axis

Earth's axis is tilted as it goes round the Sun, so each half gets more or less direct sunlight at different times.

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It is summer in the Northern Hemisphere. What season is it in the Southern Hemisphere?

  1. Summer
  2. Spring
  3. Autumn
  4. Winter
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Correct answer: D. Winter

The two halves of Earth always have opposite seasons.

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In winter the Sun is low in the sky. Its rays are then:

  1. Stronger and more direct
  2. Exactly the same as in summer
  3. Spread out and weaker
  4. Blocked from reaching Earth
Show answer and solution

Correct answer: C. Spread out and weaker

A low Sun spreads its rays over a larger area, so the light is less intense.

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