How do you make a sun Earth and moon model?

How do you make a sun Earth and moon model?

Cut three 6-inch pieces of string and tape one each to the sun, Earth and moon. Route the sun's string through the center of the cardboard, the Earth's through the second hole and the moon's through the third. Tape each end to back of the cardboard circle to complete the model.

How do you create Earth?

Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.