I am sure this can be useful for a unit looking at habitats/ global changes.... and the impact on the environment/living things.... also just kind of fun :)
Free teacher guides to lots of books
All Sorts of Things (Grades K-2) Here
Alone in the Desert (Grades 6-8) Here
Animal Clues (Grades K-2) Here
Body Maps (Grades 3-5) Here
The Cat on the Chimney (Grades 3-5) Here
Crazy Weather (Grades 3-5) Here
Cut and Join (Grades K-2) Here
Fins and Feathers (Grades K-2) Here
Habitats (Grades K-2) Here
How Many Eyes? (Grades K-2) Here
The Paper Skyscraper (Grades K-5) Here
Sharks (Grades 3-5) Here
Skeleton (Grades K-2) Here
Small Worlds (Grades 3-5) Here
What Did You Eat Today? (Grades K-2) Here
What Do They Eat? (Grades K-2) Here
You Are Here (Grades K-2) Here