Melting-Crystalization-Igneous-Erosion-Sedimentary-Metamorphic-Melting

When rocks melt because of extreme heat and then cool and become hard.

Organisms that have been frozen, preserved in tar pits or mummified

Magma is molten rock found under ground, Lava is molten rock found above the Earth's surface.

Perminerlization- when minerals from water or the ground enter the pores of dead plants or animals. These minerals harden the remains and turn into stone.

Fossilization

Layers deposited first will be oldest and are found at the bottom of a rock, while layers deposited recently are the youngest and are found at the top.

Sandstone, Mudstone, Limestone, Shale, Coal...

Remnants or imprints of organisms that are naturally preserved in stone.

Body Fossils- the preserved remains of plants and animals; Trace Fossils- records of an animal's behaviour eg. footprints

Index Fossils must be widespread, abundant and short-lived.

When tiny pieces of rocks & dirt get blown/washed away from mountains and sink to the bottom of lakes/oceans, creating layers that squeeze together overtime.

The study of layers of rocks to determine geological timelines.