Rocks

What are interlocking grains?

Grains that fit together without any gaps?

What is a mixture?

two or more substances jumbled together but not joined to each other. The substances in mixtures can often be separated from each other.

What is a Compound?

A substance that can be split into simpler substances bc it contains the atoms of two or more elements joined together

What r rocks?

A naturally occurring substance made of up of grains and minerals

What are minerals?

A naturally occurring element or compound that can form distinct grains in rocks.

What are intrusive igneous rocks?

Igneous rocks that form underground

What are extrusive igneous rocks?

Igneous Rocks formed from cooling lava

How are igneous rocks formed?

When molten rock cools down it freezes to form igneous rocks.

How are metamorphic rocks formed?

Rocks moved down into the Earth or near magma can also become more calor. High temps and pressures can cause changes in the minerals in rocks, and new crystals form. Rocks changed like dis r called metamorphic rocks

What is weathering?

Weathering is a natural process that slowly breaks apart or changes rock. Heat, water, wind, living things and other natural forces causes weathering. ​

Equation for when limestone is exposed to chemical weathering

acid + metal carbonate -> salt + water + carbon dioxide

What is freeze thaw

Water can get into cracks in a rock and if it freezes the ice will expand and push the cracks apart.

what is erosion?

wearing away of sand, soil, rocks by water or wind. Rocks fall into stream of water where they move and knock against each other and wear away, this is called abrasion.