Author

Mei Liu

On the editorial team at Biology Insights, Mei Liu is an associate editor covering introductory science. Based in Dayton, Ohio, she oversees material explaining basic physical concepts to family audiences. Liu spent eight years teaching primary school before taking up editorial work full time, bringing practical instructional experience from early grade classrooms. She now guides foundational physical science coverage across the team’s publishing lineup.

How Many Atoms Are in Oxygen?Chemistry
How Did Silver Get Its Name and Symbol?Chemistry
How Is Barium Used in Everyday Life?Chemistry
How Did Copper Get Its Name?Chemistry
When Was Titanium Discovered and by Whom?Chemistry
Why Is It Important to Separate Materials From a Mixture?Chemistry
What Was the First Discovered Element?Chemistry
Where Is Manganese Found in Nature?Chemistry
What Is It Called When a Solid Turns Into a Gas?Chemistry
What Are Physical Changes? Definition and Examples Physics
How Did Platinum Get Its Name?Chemistry
Is Q on the Periodic Table?Chemistry
How to Identify a Physical Change in Matter Chemistry
Is Vinegar a Homogeneous Mixture?Chemistry
Is Ice a Pure Substance or a Mixture?Chemistry
Is Coffee a Homogeneous Mixture or a Heterogeneous One?Chemistry
What Are the Physical and Chemical Properties of Iron?Chemistry
How Did Mendeleev Develop the Periodic Table?Chemistry
Is H2O in the Periodic Table?Chemistry
How Many Elements Are Man-Made?Chemistry
Which Elements in the Periodic Table Are Magnetic?Chemistry
What Is an Element? A Simple Definition for Kids Chemistry
Who Discovered Aluminum and How Was It Isolated?Chemistry
What Is the Melting Point of Diamond?Chemistry
How Was Astatine Discovered? From Prediction to Synthesis Chemistry
How Many Atoms Does Carbon Dioxide Have?Chemistry
Why Is Gold Au on the Periodic Table?Chemistry
Is Water a Mixture or a Pure Substance?Chemistry
Is Seawater a Homogeneous Mixture?Chemistry
What Is Graphite on the Periodic Table?Chemistry