BBC Earth. Ice Worlds Activity Book. Level 3: Hannah Fish

Ladybird Readers is a graded reading series for English Language Teaching (ELT) markets, designed for children learning English as a foreign or second language.
Polar bears, seals, and penguins live in the Arctic and Antarctica. They must work hard to find food and look after their babies.
Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a foreign or second language. Recommended for children aged 4+, the five levels of Readers and Activity Books follow the CEFR framework (Pre-A1 to A2) and include language activities that help develop key skills and provide preparation for the Cambridge English: Young Learners (YLE) exams.
This Level 3 Activity Book is A1+ in the CEFR framework and supports YLE Movers exams. The activities encourage children to practice longer sentences with up to three clauses, some expression of future meaning, comparisons, contractions and relative clauses.