A-004

High school (ages 12+)
Transportation

Name:

Date:

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/a-004

Write what each word means, using the article.

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

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is A-004 known for?Provided empirical data for early atmospheric models and methodologies
2. What is the rocket system?A-004 sounding rocket
3. What is the inaugural launch year?1959
4. What was A-004 and why was it important?A-004 was a fast sounding rocket launched in 1959 that carried scientific instruments to study the upper atmosphere. It helped scientists learn about temperature, pressure, and other atmospheric conditions at high altitudes.
5. How did A-004 help scientists learn about the upper atmosphere?A-004 carried sensors that measured temperature, pressure, density, and sometimes cosmic rays. The data was sent back to Earth so scientists could study the atmosphere directly.

Sounding Rocket: A rocket designed for suborbital flights to carry scientific payloads for atmospheric and space research.
In-situ Measurement: Directly measuring physical or chemical properties of a substance or phenomenon within its natural environment.
Telemetry: The process of recording and transmitting the readings of an instrument, typically from a remote source like a rocket.
Aeronomy: The scientific study of the upper regions of the atmosphere, where phenomena such as auroras and the ionosphere occur.