CBSE Class 5 General Knowledge Space and the Solar System Worksheet Set 01

Answer: Venus. Its thick atmosphere traps heat.

Teacher's Note:
1. Many students guess Mercury because it is closest to the Sun.
2. Venus is hotter because of its dense carbon dioxide atmosphere.

Answer: Mercury.

Teacher's Note:
1. Mercury is the closest planet to the Sun.
2. It is small but is not the hottest planet.

Answer: Jupiter, Saturn, Uranus and Neptune. These are the gas and ice giants.

Teacher's Note:
1. Saturn has the most famous rings.
2. Rocky planets such as Earth and Mars have no rings.

Answer: Sputnik 1, launched by the Soviet Union on 4 October 1957.

Teacher's Note:
1. Sputnik 1 started the space age.
2. Remember the year 1957 with the name.

Answer: Aryabhata, named after the Indian mathematician and astronomer Aryabhata. It was launched on 19 April 1975.

Teacher's Note:
1. It was built by ISRO.
2. It was launched with the help of the Soviet Union.

Answer: Rohini, launched in 1980 by the SLV-3.

Teacher's Note:
1. SLV stands for Satellite Launch Vehicle.
2. This was an important step towards self-reliance in space.

Answer: No. The orbit is elliptical, a slightly stretched circle.

Teacher's Note:
1. The Earth is a little nearer the Sun at some times of the year.
2. The orbit is close to a circle but not exactly one.

Answer: A lunar eclipse occurs when the Earth comes between the Sun and the Moon.

Teacher's Note:
1. The order in a lunar eclipse is Sun, Earth, Moon.
2. It happens only on a full moon night.

Answer: A solar eclipse occurs when the Moon comes between the Sun and the Earth.

Teacher's Note:
1. The order in a solar eclipse is Sun, Moon, Earth.
2. It happens on a new moon day and should never be viewed with bare eyes.

Answer: Meteor. A shooting star is also called a falling star.

Teacher's Note:
1. It is not a star or a comet.
2. It is a small rock burning up as it enters the Earth's atmosphere.

Answer: In August 2006 the International Astronomical Union classified Pluto as a dwarf planet.

Teacher's Note:
1. Pluto is smaller than the planets and shares its orbital zone with other objects.
2. The solar system now has eight planets.

Answer: Eight: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Teacher's Note:
1. Learn the planets in order from the Sun.
2. Pluto is not counted among them.

Answer: Craters are circular hollows or pits on the surface. They are formed mainly by meteorites striking the surface or by volcanic explosions.

Teacher's Note:
1. The Moon has many craters because it has no thick atmosphere to burn up meteorites.
2. Craters are also found on some planets.

Answer: No. Andromeda is a galaxy, a huge collection of stars, gas and dust.

Teacher's Note:
1. It is the nearest large galaxy to our own Milky Way.
2. It looks like a faint patch of light in the night sky.

Answer: The Sun.

Teacher's Note:
1. The Sun is a star, not a planet.
2. All planets move around it in their orbits.

Answer: Jupiter.

Teacher's Note:
1. Jupiter is a gas giant.
2. It is bigger than all other planets put together.