The Rock Cycle
what does marble form from?
marble form from limestone
Rocks are made up of substances called what?
Minerals
How long has stone technology been around for?
two million years
what is the surface of a pool table made of?
Slate
what is the quickest way of identifying a mineral?
colour
what was the most commonly used resource in the stone age?
flint
what is the most common minerals in the earths crust?
Quarz
elements found naturally in their uncombined form are also minerals. These elements are called what?
native elements
what were grinding tools made of?
slabs of stone
what are the types of rocks in the rock cycle?
metamorphic rock, sedimentary rock and igneous rock
most rocks are compounds of what elements?
oxygen and sillicon
what were grinding stones made of?
rough and usually made from sandstone, basalt or quartzite.
how does igneous rocks form?
By the cooling and hardening of magma ( molten rock) from inside the earth
colours, shapes and textures of the minerals in rocks tells us what?
what they are made of and how they are formed and also provide clues from the past
what was percussion flaking used for
to make tools such as knife blades, scrapers and engravers