1. Why is the medicine bottle so light? Because light color can reflect light, dark color absorbs more light in the sun, and drugs are easy to deteriorate. )
2. Who invented the steam engine? (Watts)
3. Which dinosaur is the hardest? (Stegosaurus)
4. What is the blood of the earth? (magma)
5. Why can't you turn off the lights and watch TV? The screen and image of the TV set are relatively small. In the dark, the vision should be highly concentrated and expanded, and it is particularly sensitive to the strong reflection of light on the TV screen, which will stimulate the eyes and reduce vision. )
6. What kinds of calligraphy are there? (Official script, cursive script, seal script, official script, running script, regular script)
7. Why don't rabbits need to drink water? Because there is a lot of water in the rabbit's staple food, it is enough for the body. If there is too much water in the intestine, you will get gastroenteritis. But rabbits can drink water when they are short of water.
8. What is a meteor? (refers to the light trace produced when very small solids or dust in space break into the earth's atmosphere)
9. Who is an outstanding astronomer in the history of China? (Rolling)
10, who is the inventor of the battery? (Volts)
1 1 and 1 Who are the two astronauts who arrived at the moon? (Armstrong and Aldrin)
12. Which province and city is Mount Tai in? (Taishan City, Shandong Province)
13. What are the five most precious gems in the world? (Opal, Emerald, Diamond, Sapphire, Ruby)