Periodic table

When was the first element discovered?


What is fire?

How many atoms does it take for something to become visible to the naked eye?

How do you find love?


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Why does burning magnesium produce white light, and copper green light?

Can fire burn or melt everything?

Is it ok to pee in the ocean?

Why does a frozen fizzy drinks can burst open?

How does a puddle evaporate?

What are Olympic medals made of?

What’s the difference between an atom and a molecule?