Materials: bracket, planet, sandpaper, tool pen.
1. Before making the models of the eight planets in the solar system, we need to prepare some experimental equipment, including: balls, brackets, sandpaper, brushes, etc. Represents the eight planets. These devices can ensure the smooth progress of model making.
2. Next, gather the balls representing the eight planets and arrange them in order of distance from the sun, namely Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
3. Then, sand each ball with sandpaper to make them look like the outline of the planet. This step requires patience and care to ensure that each ball presents the correct shape.
4. Finally, put each ball on the bracket, paint it with a brush and dry it. This step can make the ball more realistic and show the characteristics of the eight planets in the solar system. Finally, a beautiful model of the eight planets in the solar system is completed.
Introduction of Mercury, Venus, Earth and Mars among the Eight Planets
1, mercury:
Mercury is the closest planet to the sun, with an average distance of about 57.9 million kilometers. It has no natural satellite, only an artificial satellite called Messenger.
2. Venus:
Venus is the second closest planet to the sun, with an average distance of about10.82 million kilometers. It also has no natural satellites, only a probe "Venus Express" runs around it.
The surface of Venus is composed of about 90% silicate rock and 10% metal, and there are a lot of volcanoes and lava flows on its surface. Venus's atmosphere is very thick, mainly composed of carbon dioxide, nitrogen and a small amount of other gases.
3, the earth:
The earth is the only known planet with life in the solar system. The surface of the earth is composed of 70% water and 30% land, and there are various landforms and landforms on its surface, including mountains, rivers, lakes, oceans, plateaus and plains.
The earth's atmosphere is mainly composed of nitrogen and oxygen, with a small amount of other gases. The climate of the earth is complex and diverse, including tropical rain forests, deserts, grasslands and temperate forests.
4. Mars:
Mars is one of the planets closest to the Earth in the solar system, with an average distance of about 223 million kilometers. The atmosphere of Mars is very thin and mainly composed of carbon dioxide. Mars has a polar ice sheet, but the greenhouse effect of its atmosphere is not enough to maintain the existence of liquid water.