#704 Why does iron rust?
Why does iron rust? The iron atoms react with oxygen molecules to produce iron oxide, which is rust. Other metals don’t rust because only iron, or metals with an iron…
Why does iron rust? The iron atoms react with oxygen molecules to produce iron oxide, which is rust. Other metals don’t rust because only iron, or metals with an iron…
Watch on YouTube How does an iron remove wrinkles from clothes? The heat forces the cellulose chains to lie straight. People started wearing clothes about 170,000 years ago. Scientists worked…
When did people start using nails? Bronze nails were used in Ancient Egypt in about 3,400 BC. Before people had nails, there were different ways of joining wood together. Some…
How can the inner core of the Earth switch rotation? Because it is separated from the solid mantle and can rotate at a different speed. The Earth has four layers.…