Geodes are formed in empty spaces inside rocks. Fluids containing minerals make their way into a rock’s cavity and crystals begin to grow. From the outside they look like an ordinary rock, although they are usually round or oval and have a hard, bumpy texture. Investigate whether rocks containing geodes can be determined from the outside.
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Autor Nancy Rogers Bosse
Categorias Ficha para imprimir, Geología, Experimento/Práctica, 12-14 años, 10-12 años, Science Fair - Education, Inglés add
Data de publicação 27 / 08 / 2020
Licença Respeita a licença original do recurso.
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