The movement of Earth around the sun on its elliptical orbit is called

Step 1: Analyze the question The question asks for the term used for the Earth's movement around the sun along its elliptical (oval-shaped) path, called its orbit.

Step 2: Explain the concept The Earth has two main movements:

• Rotation: the spinning of the Earth on its own axis. One rotation takes about 24 hours and causes day and night.
• Revolution: the movement of the Earth around the sun in its orbit. One revolution takes about 365¼ days (one year) and, together with the tilt of the Earth's axis, causes the seasons and varying day length.

Step 3: Check each option

• A. Rotation: This is the spinning on the axis, not the movement around the sun. ✗
• B. Axis: This is the imaginary line through the North and South Poles about which the Earth spins. It is not a movement. ✗
• C. Revolution: This is the movement around the sun in an elliptical orbit. ✓
• D. Gravitation: This is the force of attraction between masses. It keeps the Earth in orbit but is not the movement itself. ✗

Step 4: Answer The correct option is C. revolution.

Exam tip: Remember "Rotate = Round itself, Revolve = Round the sun." Both start with "R", so link the second word to the sun's path: Revolution = Orbit. The same applies to the Moon, which revolves around the Earth.