Umbre, The darker part of shadow., Penumbre, The lighter part of shadow, Igneous rock, Form when magma cools down, Pumice, Example of Igneous rock, Sedimentary rock, Form when rock get weathering, erosion, compact and cementation, Halite, Example of Sedimentary rock, Metamorphic rock, Form when rock get heat and pressure, Granite, Example of Metamorphic rock, Lunar eclipse, Happen at night, Solar eclipse, Happen in the morning

Science

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？