An Ocean and a Continent: teacher key

The Arctic and Antarctica, grade 4 edition, written for 4th grade. One pole is mostly ocean and the other is a continent. Compare the ice, the cold and the animals of the Arctic and Antarctica.

Read the book. Print this page for the key.

Questions and answers

1. What is most of the Arctic?
   • Ocean (answer)
   • Desert
   • Mountains
2. What are icebergs?
   • A kind of whale
   • Large chunks of ice that break off glaciers (answer)
   • Research stations
3. Why is much of Antarctica a desert?
   • Very little snow falls in the middle (answer)
   • It is very hot
   • There are no glaciers
4. What does blubber do for seals?
   • Helps them keep warm in cold water (answer)
   • Helps them fly
   • Helps them dig dens
5. Which of these live in Antarctica?
   • Emperor penguins (answer)
   • Polar bears
   • Narwhals

Words

• continent: huge land
• glacier: river of ice
• blubber: thick body fat
• krill: tiny sea animals
• desert: very dry land