Recently, I read a popular science book Dinosaur Museum, which introduced 100 kinds of dinosaurs and described the discovery process of dinosaur fossils. By reading this book, I know that dinosaurs are divided into two kinds, herbivorous dinosaurs and carnivorous dinosaurs. The dinosaur kingdom has many members. They are different in appearance and shape. There is the largest Argentinean dragon, more than 40 meters long and weighing about 100 tons. And the youngest, Eriosaurus, is only 0. 6 to 1 m, as well as southern behemoths, shark tooth dragons and Tyrannosaurus Rex. These three dinosaurs are very fierce and are the overlords of the dinosaur kingdom. Among them, my favorite dinosaur is Tyrannosaurus Rex, which is 4 to 6 meters high and 7 to 8 meters long. It was the fiercest beast in Bay's later period.

I know that insects breathe with their heads, but I read in primary school science books that insects-grasshoppers don't breathe with their heads. So where does he breathe? In order to find out this problem, I did an experiment. I first brought a cup and filled it with water, and then invited the protagonist of this experiment-grasshopper. Everything is ready. First of all, I immersed its head in the water and waited for a while before I found that the grasshopper was safe and sound. Then, I dipped its legs into the water again, but it was still alive and kicking. Finally, I dipped his stomach into the water and found that he began to struggle. The grasshopper's respiratory organs were originally in its stomach! Through this experiment, I understand a truth-"what you get on paper is too shallow, you will never know." I will do more scientific research and learn more magical scientific knowledge in the future.