รายละเอียด(อย่างย่อ) Project Earth Packed with super-cool facts and hands-on activities, Project Earth helps children to really engage with a core topic. From the water cycle to climate change, each spread features photos, stunning artwork and fun cartoons. Step-by-step illustrated projects throughout encourage practical learning - readers can learn how to power a clock with a potato, make a mud flow, and construct their own seismometer.