Current location - Training Enrollment Network - Mathematics courses - How to write the weekly diary of junior high school? What should I use for the topic?
How to write the weekly diary of junior high school? What should I use for the topic?
Landlord, please take it:

My new discovery

One day, when I was playing electronic toys, I asked my mother which clarinet was. My mother pointed to a circuit board with a small glass tube, so I picked it up and put it together according to the book 450 Spelling Guides. When I finished spelling, I saw this sentence: put the magnet near or touch the clarinet, and the monopole light will light up ... I tried it and it was really delicious. I see two small pieces of iron in the glass tube. At this time, the lights are dim. Seeing this phenomenon, I thought: Why is the light dim when the switch is controlled and bright when the clarinet is controlled? Is it clarinet or magnet? I took two magnets, one big and one small. When I touched the small magnet, the electric light was not as bright as the big magnet, but it didn't light up for the first time. I thought for a while, and suddenly it dawned on me: I just shook the magnet. I tried it, and it was a magnet! I closed the switch again and pushed the magnet back and forth on the wire, but the light was still on! I tried some electrical components, and the current is still very strong. I found that as long as the magnet is placed on the wire, the current can be enhanced!

I jumped and jumped, and I couldn't help jumping up: "I found it! I succeeded! "

From this discovery, I understand a truth: as long as you pay attention to observation, you will find something and gain something everywhere. As long as you pay attention to observation, you will certainly find something and gain knowledge like me.