Children make the earth by hand.

The children made the earth by hand as follows:

1. Draw a circle in the middle of table tennis with a red pen as the equator; Drill a small hole on each side of the equator so that the distance from the small hole to each point of the equator is equal.

2. Bend the wire into a semicircle. Note that the diagonal wire forms an angle of 23.5 with the vertical, and its bending angle is slightly larger than that of table tennis.

3. Pass the ping-pong ball through the inclined wire.

4. At both ends of the diagonal wire, wrap the tape several times, so that the table tennis can be fixed in the middle of the diagonal wire and can rotate freely at the same time.

5. Put some plasticine under the wire to make a small globe.

The earth is the third planet from the sun and the only celestial body known to breed and support life. About 29.2% of the earth's surface is land composed of continents and islands. The remaining 70.8% is covered by water, most of which are covered by salty water bodies such as oceans and bays, and some are covered by fresh water such as lakes and rivers, which together form the hydrosphere.

Most of the polar regions of the earth are covered with ice. The outer layer of the earth is divided into several rigid tectonic plates, which have migrated on the surface for millions of years, but the inside is still active, with a solid iron core, a liquid outer core that produces the earth's magnetic field, and a convective mantle that drives the plate structure.