What Makes a Mineral Critical?
Deep beneath the ground, Earth holds thousands of different minerals. You might already know about common minerals like quartz, copper, or salt. However, scientists and engineers often talk about a special group known as "critical minerals." What makes a mineral critical, and why do they matter so much to our everyday lives?
A mineral earns the title "critical" when it meets two main conditions. First, it must be essential to modern technology, national security, or the economy. This means that without it, vital machines, medical devices, or energy systems cannot work properly. Second, its supply chain must be at risk. A supply chain is the process of mining, refining, and transporting a material to where it is needed. If a mineral is rare, difficult to extract, or controlled by only one or two countries, any disruption can cause a major shortage. When a mineral is both extremely necessary and difficult to get, it is labeled critical.
- minerals:
- Natural solid substances formed deep in the Earth.
- supply chain:
- The complete network of steps needed to produce and deliver goods to consumers.
- refining:
- The process of removing impurities to make a material pure and usable.
- deposits:
- Natural layers or pockets of minerals found inside rocks or the ground.
- extract:
- To take out, pull out, or remove something by using effort or chemical processes.
- geologists:
- Scientists who study the rocks, minerals, and physical history of the Earth.
One passage, many ways to practice
Reading-skill questions, word work and writing prompts — all built from this text.
Main Idea
Identify the central idea and explain how important details develop it.
Summarize
Select, organize, and restate the most important information without adding opinion.
Structure
Analyze how sections and organizational choices build the text's ideas or effects.
Vocabulary
Practice words from the passage with a printable worksheet.
Writing Prompts
Use the passage as a springboard for short written responses, from personal reflection to evidence-based arguments.
Fix the Sentence
Practice editing sentences drawn from this passage with a printable worksheet.
Ready to use this passage in class?
Start free with the Mixed worksheet and 3 PDF downloads each week. Focused skill sets depend on plan.
Preview questions from this passageShowHide
- 1What are the two main conditions a mineral must meet to be considered critical?
- 2What is a supply chain, according to the passage?
Where this passage belongs
You Might Also Like
About this explanatory article passage for Upper Elementary
“What Makes a Mineral Critical?” is a explanatory article reading passage about Critical Minerals, written for Upper Elementary. It takes about 2 minutes to read (314 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.