Q1. How do astronomers work out the length of
a. a year and b. a day
Answer:
Astronomers work out the length of:
a. a year by the rotation of the Earth around the Sun and
b. the length of a day by spinning of earth on its axis.
Q2. Describe the sun.
Answer:
The Sun is the largest body and the centre of our solar system. It is important for life on Earth as energy from the Sun provides heat and light. It is shaped like a sphere and is a huge ball of hot gases. It is actually a star, but looks big because it is close to the Earth.
Q3. What is - a. a revolution and b. a rotation
Answer:
a. Revolution is the Earth's movement around the Sun.
b. Rotation is the Earth's movement on its own axis
Definition of Solar System
The Solar System is made up of all the planets that orbit our Sun. In addition to planets, the Solar System also consists of moons, comets, asteroids, minor planets, and dust and gas. Everything in the Solar System orbits or revolves around the Sun.
a. a year and b. a day
Answer:
Astronomers work out the length of:
a. a year by the rotation of the Earth around the Sun and
b. the length of a day by spinning of earth on its axis.
Q2. Describe the sun.
Answer:
The Sun is the largest body and the centre of our solar system. It is important for life on Earth as energy from the Sun provides heat and light. It is shaped like a sphere and is a huge ball of hot gases. It is actually a star, but looks big because it is close to the Earth.
Q3. What is - a. a revolution and b. a rotation
Answer:
a. Revolution is the Earth's movement around the Sun.
b. Rotation is the Earth's movement on its own axis
Definition of Solar System
The Solar System is made up of all the planets that orbit our Sun. In addition to planets, the Solar System also consists of moons, comets, asteroids, minor planets, and dust and gas. Everything in the Solar System orbits or revolves around the Sun.
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