What's up with this banana? It was yellow just a couple of day ago. How did it become black?

Without these elements, we would not enjoy any of our salt compounds.

Come on now. Step on the gas! Get the fuel burning in that engine so that you can cruise right on down the road.

BRRRRRR!!!! It's freezing cold out here! No wonder the water has turned to ice.

Wow! What a pretty neon sign!

Of course! Simple elements do combine to form complex substances.

Look at this solid substance that magically appeared when I was mixing these two clear liquids. Am I a magician or what?

Just look along the zigzag line of the Periodic Table and you will find elements with properties of metals and non-metals.

Wait! This bottle was full of hydrogen peroxide! How did it become water?

When you cook an egg, the yolk of the egg absorbs all the heat.

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