Rock that is made from pieces of rocks and minerals

Rock that forms from molten rock that has cooled and hardened

rock that forms when one type of rock changes into another type of rock

A naturally formed solid with a definite internal pattern

A nonliving, naturally occurring solid with a definite chemical structure

a fossil fuel found in the form of a gas

an energy source made from once living organisms

a renewable resource that is generated from the heat in Earth's interior

property that uses the Mohs scale, determines how difficult it is to scract

The appearance of a mineral

how a rock breaks

Importance of forests

Difference between renewable and nonrenewable resources and examples

Human impact on Earth

Rock cycle

sedimentary rock

igneous rock

metamorphic rock

crystal

mineral

natural gas

fossil fuels

geothermal energy

hardness

luster

cleavage

provide homes for wildlife, remove carbon dioxide from atmosphere, provide food and medicine, create oxygen

renewable: can be replaced as fast as used, air and water. nonrenewable: can't be replaced as fast as used, coal and petroleum

burn fossil fuels which release gasses that trap heat, cut down forests which provide oxygen and homes for wildlife, use up most of available farm land

volcano erupts, cools and forms an igneous rock, weathering breaks down rock into sediments, sediments pile on top of each other and form a sedimentary rock, over time heat, pressure or chemical weathering changes the rock into a metamorphic rock