Where did life on Earth originate? How many animal and plant species do our oceans host? And what percentage of the Earth is currently covered in ice? With over 100 questions and answers about continents and oceans, animals and plants, as well as people and cultures, children aged 8 and up can quiz themselves about the Earth. Whether at home or on the go, individually or in a group – the quiz booklet in a handy pocket format provides numerous aha moments with facts and photos.