alleryStart learning →Which one is the star at the centre of our Solar System?
- The Moon
- The Sun
- Jupiter
- Earth
Show answer and solution
Correct answer: B. The Sun
The Sun is the only star in our Solar System and the planets move around it.
Olympiad (Class 4) Earth and Universe — practice questions
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.
Practise Earth and Universe with Quill →Earth and Universe questions and exercises with answers
Showing questions 1–30 of 56.
Which one is the star at the centre of our Solar System?Read the answer and worked solution →How many planets move around the Sun in our Solar System?Read the answer and worked solution →Which planet is the closest to the Sun?Read the answer and worked solution →Which planet is the biggest in the Solar System?Read the answer and worked solution →Which planet has rings that people can easily see from Earth?Read the answer and worked solution →On which planet are life and liquid water on the surface known to exist?Read the answer and worked solution →How many natural moons does Earth have?Read the answer and worked solution →Which planet goes around the Sun while lying on its side?Read the answer and worked solution →Which planet looks red because its soil has iron oxide in it?Read the answer and worked solution →Which of these planets has no natural moon at all?Read the answer and worked solution →The Moon is about how wide when compared with Earth?Read the answer and worked solution →About how many days does the Moon take to show the same phase again?Read the answer and worked solution →Which part of the Moon do people on Earth see all the time?Read the answer and worked solution →What do we call the side of the Moon that faces Earth?Read the answer and worked solution →The Moon's pull on things at its surface is about what part of Earth's pull?Read the answer and worked solution →What mostly marks the surface of the Moon?Read the answer and worked solution →Astronauts wear spacesuits with their own air on the Moon. Why?Read the answer and worked solution →Which is the brightest object in Earth's night sky?Read the answer and worked solution →During a total solar eclipse, what covers the Sun completely?Read the answer and worked solution →A lunar eclipse happens when the Moon moves into which shadow?Read the answer and worked solution →Inside the Sun's core, which gas is turned into helium?Read the answer and worked solution →The Sun holds almost all the mass of the Solar System. All the planets together have:Read the answer and worked solution →About how old is the Solar System?Read the answer and worked solution →How many rocky inner planets are there in the Solar System?Read the answer and worked solution →Between which two planets does the asteroid belt lie?Read the answer and worked solution →The air of Venus is mainly made of which gas?Read the answer and worked solution →Phobos and Deimos are small moons of which planet?Read the answer and worked solution →What is the name of the giant storm that swirls on Jupiter?Read the answer and worked solution →Earth is about 1 AU from the Sun and Jupiter is about 5 AU. Jupiter is:Read the answer and worked solution →Counting outward from the Sun, Earth is which planet?Read the answer and worked solution →
Worked practice questions
How many planets move around the Sun in our Solar System?
- Six
- Seven
- Eight
- Nine
Show answer and solution
Correct answer: C. Eight
Our Solar System has eight planets, and Earth is one of them.
Which planet is the closest to the Sun?
- Mercury
- Venus
- Earth
- Mars
Show answer and solution
Correct answer: A. Mercury
Mercury is first in the order of planets counting outward from the Sun.
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