Some rocks are big and heavy. Most of these rocks are also hard and rough. There are a few of them with fine edges which makes them sharp. Other rocks are small, rounded and with smooth surfaces. The latter are light, not heavy. You can also find shiny rocks which contain crystals. These rocks are not very strong. They are brittle because if you drop them, they break.
Some rocks are big and heavy. Most of these rocks are also hard and rough. There are a few of them with fine edges which make makes them sharp.
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Some rocks are big and heavy. Most of these rocks are also hard and rough. There are a few of them with fine edges which make makes them sharp. Other rocks are small, rounded and with smooth surfaces. The latter are light, not heavy. You can also find shiny rocks which contain crystals. These rocks are not very strong. They are brittle because