How do fossils form? Fossils are typically found in sedimentary rocks and occasionally some fine-grained, low-grade metamorphic rocks. Sometimes the fossils have been removed, leaving moulds in the surrounding rock, or the moulds may have later been filled by other materials, forming casts of the original fossils.

What kind of rocks contain fossils?

Most fossils hide out in sedimentary rock . When tiny bits of rocks and minerals (called sediment) join together over millions of years, they become sedimentary rock. Plants and animals that become sandwiched in this sediment eventually turn into fossils. Two examples of sedimentary rocks are sandstone and shale.

Can fossils only be found in sedimentary rocks?

Generally it is only sedimentary rocks that contain fossils.

Can fossils be found in sandstone?

Most sandstones do not contain fossils, for various reasons. Water currents in the environment might have been too strong for animals to survive. Also, sands are very porous, so water seeping through the sand might have dissolved the shells away long before the sand was buried and changed into sandstone.

What are the similarities and differences between rocks and minerals?

Comparison chartMineralsRockscolorcolor is usually the samecolor is not the sameNutritional requirement for the human bodyOnly some minerals are required by the human body for nutrition.little to noneshapeusually have a shapeno definite shapefossilsno fossilssome have fossils4 more rows

What are the five characteristics of a rock?

Rocks are classified according to characteristics such as mineral and chemical composition, permeability, texture of the constituent particles, and particle size. These physical properties are the result of the processes that formed the rocks.

What do rocks have in common?

Rocks Question What do all rocks have in common? They all have the same color. They all have minerals. They all have the same shape.

What do minerals and rocks have in common?

A mineral is a chemical substance made up of one or more chemicals having a definite crystal structure. Rocks do not have a definite chemical composition whereas minerals do. Sometimes a rock may contain organic remains in it. A mineral, on the other hand, will never have any organic material present within it.