A microarray is a tool used in science to study many tiny things at the same time, like genes or cells.
Microarrays are important in science and can help scientists learn many things at once.
Examples:
The scientist used a microarray to study the cells.
I learned about microarrays in science class.
The microarray can look at many genes at once.
The microarray is like a tiny microscope for many things.
With a microarray, you can study a million things at the same time!
The microarray helped the scientist learn about the tiny things.