Nondestructive testing

High school (ages 12+)
Science & Technology

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/nondestructive-testing

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 the core principle?Evaluation of material properties and integrity without causing damage
2. What is the key applications?Aerospace, automotive, civil infrastructure, energy production, manufacturing, medical diagnostics, and forensic engineering
3. Why do scientists use nondestructive testing?It saves money and time, and keeps things safe by finding hidden cracks or problems before they cause trouble.
4. How does nondestructive testing find hidden cracks?It sends waves or light through the material, and the returned signals show if there are gaps or defects inside.

Discontinuity: An interruption of the normal physical structure of a material, such as a crack or void.
Volumetric Inspection: NDT methods that examine the internal volume of a material, not just the surface.
Leakage Field: A magnetic field that extends outside the material, often caused by a surface or near-surface flaw in magnetic particle testing.