Origin of earth

____________________ are huge balls of bright, hot glowing gases.

• Stars

• Moon

• Sun

The ‘________________’ is also a star.

• Moon

• Sun

• Earth

A ______________________ consists of a star in the middle with a number of planets orbiting around it

• Solar system

• galaxy

• Satelite

__________________, is no longer regarded as a planet of earth’s solar system.

• Pluto

• Venus

• uranus

According to_______________________, universe started with a huge explosion and matter (dust and gases) filled the entire space.

• Stars

• Scientists

• Big Bang

The ____________________of the earth was formed from cooling and hardening of the molten matter and hot gases.

• Crust

• Core

• Land

The ______________________also helps to regulate the ambient (surrounding) temperature which is suitable for supporting life on earth

• Atmosphere

• sky

• Sun

About 32 km deep you would reach the part of earth which is called ________________

• core

• Mantle

• crust

the earth ____________________ on its axis like a spinning top. So the day and night cycle is of 24 hours

• Rotates

• revolves

• spins

The earth not only rotates around its axis but also ______________________ around the sun .

• Jumps

• Spins

• Revolves