DK 
DK Super Readers Level 1 Frozen Worlds 

Use your reading superpowers to learn all about life in Earth»s frozen Arctic and Antarctic — a high-quality, fun, non-fiction reader — carefully levelled to help children progress.
Frozen Worlds is a beautifully designed reader all about the Arctic in the north, home to the polar bear and the southern Antarctic, with its penguins and seals.
The engaging text has been carefully levelled using Lexiles so that children are set up to succeed.
A motivating introduction to using essential non-fiction reading skills.
Children will love to find out about the Earth»s frozen extremes, the Arctic and Antarctic.