Chemistry: Age 11

8 illustrated Chemistry lessons for Age 11.

Sugar in water When sugar dissolves in water, it seems to vanish, but all of its mass is still there. If you add too much, so…
Separating oil and water Oil and water do not mix, so they form two layers. The heavier liquid sinks to the bottom and the lighter one …
Getting salt back from seawater When salty water evaporates, the water turns into invisible vapour and goes into the air, but the salt stays b…
Settling and Filtering Muddy Water When muddy water is left still, heavy bits sink to the bottom. Pouring the clearer water through a paper filte…
Paint Protects Car Metal Painting car metal puts a coat between the metal and the air. That coat keeps out oxygen and water, so the met…
Inside an Atom An atom has a tiny, dense center called the nucleus. Around it, even smaller electrons move, held by the elect…
Burning Tobacco Makes Smoke When tobacco burns, it does not turn into one simple gas. It makes smoke that is a mixture of many different c…
Tiny Balls in Everything Everything you can see around you is made of atoms. Each atom has a heavy middle with lighter parts moving aro…