Our Sun

Our Sun written by Hannah Gramson Focus Question What is the sun? Why is it important to life on Earth?

《我们的太阳》 汉娜·格拉姆森 著 核心问题：太阳是什么？ 为什么它对地球上的生命很重要？

What is the sun? The sun is a star. A star is a large ball of gas that gives off energy. The sun is the closest star to Earth.

太阳是什么？ 太阳是一颗恒星。 恒星是一团会释放能量的巨大气体球。 太阳是离地球最近的恒星。

the sun's energy. We can feel the sun's energy as heat. We can see the sun's energy as light. Without heat and light, there would be no life on Earth.

太阳的能量。 我们能感受到太阳的能量带来的热量， 能看到太阳的能量发出的光。 没有热和光，地球上就不会有生命存在。

Heat from the sun. Without the sun's heat, Earth would be too cold. The sun warms Earth's land, air, and oceans. Without the sun's heat, water would be solid ice.

来自太阳的热量。 没有太阳的热量，地球会变得非常寒冷。 太阳会温暖地球的陆地、空气和海洋。 没有太阳的热量，水都会变成坚硬的冰。

The sun's heat turns ice to liquid water we can drink. All plants and animals need to drink water to live.

太阳的热量把冰融化成我们可以饮用的液态水。 所有的动植物都需要喝水才能生存。

Light from the sun. Without the sun's light, Earth would be dark. We need the sun's light to see.

来自太阳的光。 没有太阳光，地球会一片漆黑。 我们需要太阳光才能看见东西。