Générateur Vocal IA 9.19化学1 Gratuit par Fish Audio

新初三学习好帮手！就用这本《漫画版一百一十八化学元素》，它展示出元素的化学魅力：认识钾元素在植物生长中的作用，了解银元素在保温瓶中利用银的热辐射原理，发现氢元素在新能源开发中的潜力，氢气是一种绿色无污染的能源，并且氢气是自然界中最轻的气体，每个元素配有详细漫画图解和元素基本性质。

Watch what happens when you place a penny in lemon juice overnight: the copper surface turns bright and shiny. Add baking soda to vinegar in a balloon, stretch it over a bottle, and the balloon inflates itself. These simple reactions demonstrate basic chemistry principles.

When you place a paper clip on water's surface it floats due to surface tension but add a drop of soap and it sinks instantly if you put dry ice in soapy water it creates mysterious fog bubbles that bounce and dance when touched these are simple scientific principles at work.

When you place a paper clip on water's surface, it floats due to surface tension, but add a drop of soap and it sinks instantly. If you put a metal spoon in hot water and touch it to a soap bubble, the bubble freezes in place like magic.

When you place a paper clip on water's surface, it floats due to surface tension, but add a drop of soap and it sinks instantly. If you wrap a dry paper towel in aluminum foil and put it in water, the towel stays completely dry.

When you place a paper clip on water's surface, it floats due to surface tension. Add a drop of soap, and it sinks instantly. Fill a glass with hot water, place it upside down on ice, and watch as the water vapor creates a miniature cloud inside.

When you place a paper clip on still water, it floats due to surface tension. Add a drop of dish soap, and it instantly sinks. Pour milk into a plate, add food coloring, then touch it with a soap-dipped toothpick - watch as the colors dance and swirl.

when you place a paper clip on water surface it floats due to surface tension but add a drop of soap and it sinks immediately mix baking soda with vinegar in a balloon then attach it to a bottle and watch as the balloon inflates itself the gas produced creates pressure that expands the balloon