Rocks are composed of minerals.
Rocks are formed in layers.
Rocks contain fossils.
Rocks contain organic material.
Recordings of earthquake waves
Fossils found in rocks
Core samples from seafloor drillings
Locations of recent volcanic activity
The relative movement of air masses
The relative movement of tectonic plates
Hardness and streak of the sample
Color and size of the sample
Location and mass of the sample
Shape and texture of the sample
Formed at different times
Formed by different methods
Took different amounts of time to form
Were formed from different fossils
Weathering of rock at Earth’s surface
Seasonal heating and cooling of Earth’s surface
Earth’s gravitational attraction to the Moon
Faulting of rock in Earth’s crust
Reaction to an acid
Reaction to a solvent
The continents were once connected as a single landmass.
Mesosaurus swam across the ocean between the continents.
The remains of Mesosaurus were carried across the ocean by predators.
Global warming has been raising the sea level in the Atlantic Ocean.