Sputnik 1

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/sputnik-1

Step 2 · Questions

1. 1. What is the orbital insertion date?

2. 2. What is the atmospheric re-entry date?

Step 3 · Words to know

Write what each word means, using the article.

• Orbital Mechanics

• Ionospheric Propagation

• Cold War

Step 4 · Two facts in your own words

Do not copy the article. Write two things you learned, the way you would explain them to a friend.