5 Physical Science Heat

BUILDING BLOCKS OF SCIENCE HEAT

科学的基石是热

WHAT IS HEAT? Hello there! I'm Heat! I'm a form of energy that you experience every day! Have you ever felt the warmth of the sun on your skin?

什么是热量？你好!我热!我是你每天都能感受到的一种能量！你有没有感觉到太阳照在皮肤上的温暖？

That sensation you feel... That's me! Have you ever sat around a fire? Nice and toasty, right? If you get too close, you might get burned. But there's a lot more to me than that!

那种感觉…… 这是我!你曾经围着火炉坐过吗？ 很舒服，对吧？如果你靠得太近，你可能会被烧伤。 但我的人生远不止这些！

HOW DO WE USE HEAT? I'm an important part of your life. In fact, I'm inside your body right now. Your body creates heat when it uses food. That's how you maintain a steady temperature.

我们如何利用热量？我是你生命中重要的一部分。 事实上，我现在就在你的身体里。 当你的身体使用食物时，它会产生热量。 这就是保持体温稳定的方法。

People use heat to cook food and warm their homes. In factories, heat is used to bend and shape metals! Iron melts at about 3000 degrees Fahrenheit (1535 degrees Celsius)!

人们用暖气做饭和取暖。 在工厂里，热被用来弯曲和塑造金属！铁在3000华氏度（1535摄氏度）时融化！

Heat can also be used to power machinery, like this car engine. Did you know that the heat from burning fuels provides the power to move nearly all automobiles and airplanes?

热也可以用来驱动机器，就像这个汽车发动机。 你知道燃料燃烧产生的热量为几乎所有的汽车和飞机提供了动力吗？