A magical day on earthHere are some suggestions for making a scientific manuscript of "A Magical Day on Earth":
** I. The birth and early state of the Earth **
1. ** Origin **
- 4.6 billion years ago, the dust in the solar system collided and condensed to form a dust layer. After the internal disintegration, the dust cluster formed a micro-planet under the influence of gravity. After a large number of "big fish eat small fish" processes, it finally formed eight planets, including Earth.
- Before and after the Earth was born, it suffered a large-scale asteroid impact. The temperature was extremely high, and the rocks on the surface were in the state of magma. Water molecules evaporated into the atmosphere. As the temperature dropped, the water vapor condensed into rain, forming liquid water. Together with the water brought by the meteorites, it gradually formed an ocean.
2. ** Archean Era (4.6 billion-2.4 billion years ago)**
- The earth had just been formed, and there was almost no life. There were only fungi and low-level blue-green algae that appeared in the late stage. Moreover, due to the movement of the earth's crust and magma activity, the rocks were deeply metamorphosed, and fossils were difficult to preserve.
** 2. Earth's Evolution and Biological Development **
1. ** Ancient Era **
- The land began to rise from the surface of the water, the plates of Asia and Europe began to separate, single-celled planktons appeared in the ocean, and the biological world changed from prokaryota to eukaryota. Fungi and algae flourished.
2. ** Ancient Era (Early Ancient Era: about 570 - 400 million years; Late Ancient Era: 400 - 230 million years)**
- The early palaeozoic-era included the Cambrian-period, the Ordian-period, and the Silurian period, while the late palaeozoic-era included the Devonian-period, the carbonian-period, and the Triassic-period. The creatures in different periods continued to develop and evolve.
** 3. Natural phenomena on Earth in a day **
1. ** Daytime **
- After the sun rose, the heat energy heated up the atmosphere, evaporating the water on the land and in the ocean to form clouds. In Africa, the movement of clouds affected the distribution of rainfall, causing animals to migrate in search of places with abundant water and grass.
- Different animals had different daytime activities. For example, giant pandas gnawed on bamboo for 14 hours a day, lions stopped hunting at noon, brown bears looked for trees to shade, and zebras hid under trees. Humans began their day's work, busy with morning meetings and business.
2. ** Night **
- The night also had a different meaning for creatures. Some creatures lit themselves up for courtship, such as male kowtows, but the light was sometimes a death trap, like fireflies using light to attract small insects and eventually make them stick to the mucus. Mankind created the electrical daytime, breaking the law of day and night.
** 4. The Beauty and Meaning of Earth **
1. ** Beauty **
- Earth was a diverse and beautiful planet. There were green trees, green mountains, flower beds, lawns, white clouds, and blue skies. It was the home of all living beings.
2. ** Meaning **
- It was the mother of mankind. All living things were a gift from the earth. Humans should cherish the earth, raise awareness of environmental issues, actively participate in environmental protection movements, and improve the earth's environment through green and low-carbon life.
In the layout of the handwritten report, the content could be presented in sections, with some simple drawings of the earth, creatures, and natural phenomena, such as the appearance of the earth, the image of animals such as giant pandas, lions, and other natural elements such as clouds and trees. Then, different colored pens could be used to distinguish the various sections, making the handwritten report more beautiful.
Is there only 23 hours in a day on Earth?Since the middle of 2020, the Earth's rotation rate has been accelerating, reaching the fastest speed in the past 50 years. This means that there are less than 24 hours in a day, but it does not mean that the Earth only has 23 hours in a day. At present, the length of the Earth's day is less than 24 hours, but the specific length is not clearly 23 hours.