What Is a Black Hole?: teacher key

Black Holes, grade 1 edition, written for 1st grade. A black hole is a place in space where even light can not get out. Find out how big they are and how we find them.

Read the book. Print this page for the key.

Questions and answers

1. What is the edge of a black hole called?
   • The moon
   • The event horizon (answer)
   • The sun
2. What helps find black holes?
   • A broom
   • A boat
   • Space telescopes (answer)
3. Ben shines a flashlight into a black hole. Will the light come back to his eyes?
   • Yes
   • Not sure
   • No (answer)
4. A rock crosses the event horizon. Will the rock come back?
   • No (answer)
   • Yes
   • Not sure
5. What does supermassive mean?
   • The smallest
   • Biggest (answer)
   • The coldest

Words

• supermassive: biggest black holes
• horizon: its edge