The Earth in the Solar System quiz

The planet nearest to the Sun is:

The largest planet in the solar system is:

The Earth is the:

The star that shows the north direction is the:

The shape of the Earth is best described as a:

Asteroids are found mainly between the orbits of:

The Moon is a:

Our solar system is part of the:

The Earth is called the blue planet because of:

Sunlight takes about this long to reach the Earth:

Why do stars twinkle while planets do not? (2 marks)

What is a satellite? Give one natural and one artificial example. (2 marks)

Why does the Moon appear to change shape during a month? (2 marks)

What are meteoroids? What happens when they enter the Earth's atmosphere? (2 marks)

Why is the Earth called a unique planet? (2 marks)

What does the word "planet" mean? (2 marks)

Name the inner planets and the outer planets. (2 marks)

Why is the Sun called the head of the solar system? (2 marks)

What are the surface features of the Moon? (2 marks)

What is the Milky Way? Why is it called Akash Ganga in India? (2 marks)

The Moon takes about 27 days to complete one revolution around the Earth. How many complete revolutions does it make in 365 days? How many days are left over? (3 marks)

The Earth's diameter is about 12,742 km and the Moon's diameter is about 3,474 km. About how many times bigger is the Earth's diameter than the Moon's? Round to the nearest whole number. (3 marks)

The Earth is about 15 crore km from the Sun. Neptune is about 30 times as far. Find Neptune's approximate distance from the Sun in crore km and in km. (3 marks)

Light travels 3,00,000 km per second. How long does light from the Moon (3,84,000 km away) take to reach the Earth? (3 marks)

Out of 8 planets in the solar system, Mercury and Venus have no moons, Earth has 1 and Mars has 2. How many moons do these four planets have together? What fraction of these four planets have no moons? (3 marks)

Read the passage and answer the questions. On a clear night in a village, Rohan saw a group of seven bright stars forming the shape of a large spoon. His grandfather told him that two of these stars point towards a star that always shows the north. (i) Name the group of seven stars. (ii) Name the star they point to. (iii) Why was this star useful to travellers? (5 marks)

Read the passage and answer the questions. In 1969, Neil Armstrong became the first man to step on the Moon. He found that the Moon had no air or water, and its surface had plains, mountains and craters. The sky looked black even in daytime. (i) Why is there no life on the Moon? (ii) What are craters? (iii) Why did the sky look black? (5 marks)

Read the passage and answer the questions. In 2006, the International Astronomical Union decided that Pluto would no longer be called a planet. It is now called a dwarf planet. Today, there are eight planets in the solar system. (i) What is Pluto now called? (ii) How many planets are there now? (iii) Name the planet farthest from the Sun. (5 marks)

Read the passage and answer the questions. The Earth gets the right amount of heat and light from the Sun. It has water and air, which contain oxygen. These conditions have made life possible on Earth. (i) Why is the Earth's distance from the Sun important? (ii) Name two gases in air that are important for life. (iii) Why is the Earth called a unique planet? (5 marks)

Read the passage and answer the questions. India launched Chandrayaan missions to study the Moon. Artificial satellites are also used for weather forecasting, communication and television broadcasting. (i) What is an artificial satellite? (ii) Name two uses of artificial satellites. (iii) How is an artificial satellite different from the Moon? (5 marks)

Draw a labelled diagram of the solar system. Describe the Sun, planets, satellites, asteroids and meteoroids. (6 marks)

Explain why the Earth is called a unique planet. Draw a diagram showing the Earth's position in the solar system and its distance from the Sun. (6 marks)

Describe the Moon, its surface, distance from the Earth and motions. Draw a diagram showing why we see only one side of the Moon. (6 marks)

Draw the constellations Saptarishi and Orion. Explain how constellations and the Pole Star help in finding directions. (6 marks)

Compare inner and outer planets under the headings size, composition and number of moons. Draw a chart listing the eight planets in order with one feature of each. (6 marks)