Rocks form when pebbles break off from outcrops and become rounded

Rocks are formed by catastrophic events

Stone quarried is not ‘natural’ and therefore not a rock

Rocks are the solid mineral material forming part of the surface of the earth and other similar planets

true

false

Rocks are defined on the basis of physical properties like hardness or shape

All rocks are heavy

Some rocks contain air holes

All rocks come from volcanoes

Only igneous and sedimentary rocks go through the rock cycle

has always existed in its present form

is a mixture of organic remains, clay and rock particles

comes from rivers

depth extends from a few meters all the way to the center of the earth

contains air

All volcanoes produce lava when erupting

can produce lava, explosions, ash, and bombs

are found in cold and hot climates

Lava’s heat comes from the sun

magma’s lower density is its upward driving force

Rain can wear away solid rock

Weathering is caused by weather alone

Erosion wears down the surface while weathering breaks up the surface

Erosion can have a big effect on the surface of the

earth such as leveling mountains or carving valleys

Wind and water only change the surface of the earth during rare events, such as huge storms

Plant roots

Water

Wind

Ice

Animal Activity

was originally eroded from rocks

can be eroded by waves and redeposited

is considered to be a rock

can be moved by wind

The rock cycle is steady and continuous

The rock cycle takes millions of years to occur

Each part of the rock cycle cannot change or be transformed into any other part of the rock cycle system

Material that reaches the surface can return to the interior of the Earth

The holes are called pores and the measure of how many pores is called porosity

Permeability is the measure of how well the fluids move throughout the rock

Oil is found in large limestone caves below the earth's surface

Oil comes from dinosaurs

Oil originates from water

Glacial ice moves backwards during glacial ‘retreats’

The earth was hot when it was formed but it has cooled substantially giving rise to the ice ages

The present ice caps have always existed on Earth, although their size has changed through time

Glaciers can break rock

true

false

Sun formation occurred after the ‘Big Bang’

The first volcano and first rocks occur far apart in regard to time

There is a big time gap between the formation of the earth and the formation of first rocks

The first volcanoes occur close in time to the dinosaurs’ extinction

Geologic deposition occurs at a non-uniform rate

sedimentary

igneous

mountain

metamorphic

true

false

Coarse-grained sedimentary rocks cooled slowly

Coarse-grained igneous rocks cooled slowly

Coarse-grained igneous rocks cooled quickly

Fine-grained igneous rocks cooled quickly