Hurricane
Earthquake
Flood
Tornado
Fire
(earth changing)

Moves blood through the body

different materials are placed together but each material keeps it own properties
Ex: bowl of fruit

Something that will meet energy needs

Scientists tests minerals for this by finding out how easily it can be scratched

Seasons
Continents changing position
Climate
(earth changing)

System that helps you breathe

No light passes through
Ex: door

Made from the remains of organisms that lived long ago

Describes how a mineral's surface reflects light

Particles move faster
Melting Point
Chocolate
Wax when you light a candle

Process of an animals CHANGING FORM during its life cycle
Amphibians and insects grow and develop through this

Let some light pass through
Ex: wax paper

nonliving, naturally occurring solid that has its own regular arrangement of particles in it

The color of a mineral in its powdered form

Particles slow down and stop moving past each other
Freezing
Wax when you blow out a candle

Egg- eggs laid in water
Tadpole- have gills and tail; grow legs and tail shortens; develop lungs
Adult (mature)- looks nothing like tadpole

Let all light pass through
Ex: glass bowl

Energy resources that either can't be replaced at all or can't be replaced as fast as people use them
Ex: nuclear energy, coal, oil

Describes a mineral's outside appearance

Series of steps by which energy moves from one type of living thing to another
Always starts with the sun

Egg- development starts here
Larva- spends its time feeding and growing; molts and sheds its outer covering a few times
Pupa- inactive while many changes happen its body
Adult (mature)- now can reproduce

Light bounces off an object

Resources that can be replaced
Ex: wood, leaves, food, wastes, water, manure

Mineral that can scratch all other minerals; hardest rock