How to draw the starry sky under the sea

The underwater starry sky is painted like this:

Tools/raw materials: paper and pens.

1. Draw the outline of a star first, and pay attention to the rounded corners.

2. Then draw eyes, nose and small mouth.

Draw a small circle on each corner of the starfish to highlight its characteristics.

4. Then draw some seaweed and small bubbles around to enhance the overall feeling of the picture.

5, finally painted with color, the work is completed.

sea-floor spreading

It was not until 1950s that geographers were able to map the underwater world with advanced technology. The results of surveying and mapping show that there is a towering ocean "ocean ridge" on the seabed, forming an underwater "mountain range", which stretches for about 83,683.6 kilometers and passes through all the oceans in the world. The "sea ridge" at the bottom of the ocean is also called a rift valley, from which magma keeps pouring out.

After the magma cooled, a series of new submarine mountains were produced on the seabed. This process is called submarine spreading, and these new submarine mountains are called seamounts. As new rocks are added to the fault valley, the rocks on both sides of the fault valley gradually move away from the center of the ocean ridge. So the farther away from the "mountain", the older the rock is.

When seamounts and new submarine plains are formed, the magma in the fault valley will continue to gush out, playing the role of "conveyor belt", pushing the new seamounts out of the crustal rocks, and at the same time slowly pushing them down from the crustal rocks and remelting them into the mantle, thus achieving the balance of rebirth and growth.