Y8 Explaning the Earth

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1 point

Which is TRUE about sedimentary rocks?

sandstone fizzes a lot with acid

the red of sandstone is usually due to iron compounds

hard wearing, not easily weathered, even by acid rain

limestone consists of sulphate minerals

1 point

What happens to pieces of rock as they are transported by a river?

They get smaller and more jagged.

They get larger and more jagged.

They get smaller and more rounded.

1 point

Which is TRUE about sedimentary rocks?

grains are glued together with water

often contain fossils

consist of layers called magma

usually non-porous

1 point

Which is a sedimentary rock formed from eroded rock particles?

basalt

granite

marble

sandstone

1 point

Which is TRUE about sedimentary rocks?

hard wearing, not easily weathered, even by acid rain

limestone is made of carbonate minerals

limestone does not readily fizz with acid

the red of sandstone is usually due to calcium compounds

1 point

Which is TRUE about igneous rocks?

soft and readily weathered

fast cooling of lava makes small crystal grains

fast cooling of lava underground makes pumice stone

formed from the effects of heat and pressure on metamorphic rocks

1 point

Which is TRUE about sedimentary rocks?

consist of layers called magma

usually consist of microscopic grains

softish, easily weathered, particularly by acid rain

never contain fossils

1 point

Which description most closely matches a typical igneous rock?

usually a non-porous hard wearing rock with a variety of crystal sizes, some only visible under a microscope, never contain fossils

not usually porous and often shows a crystalline structure of layers of grains, sometimes contains distorted fossils due to effect of heat and pressure

softish, porous or crumbly rock, usually made from compacted grains of mineral material and often containing fossils

1 point

Where are the oldest layers of rock usually found in a cliff made from sedimentary rock?

at the bottom

in the middle

at the top

10.

1 point

Which is a sedimentary rock?

basalt

shale

slate

marble

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