earths system Flashcards
(20 cards)
physical properties
any property that can be observed using the five senses or can be measured without changing the matter.
weight/mass
weight-how an object is( mass is how much “stuff” ( matter) something is made of)
solid
a state of matter that maintains its own shape instead of conforming to the shape of its container.
liquid
something that can flow and take the shape of its container like water or juice but it has a fixed amount of space ( volume ) similar to how a solid stays the same size.
conduct
it allows something like heat or electricity to flow or pass through it easily.
heat
energy that moves from something hot to something cold, a form of energy.
minerals
a substance found in nature, minerals make up rock.
hardness
how easily or difficult it is to scratch a mineral’s surface.
streak
the color of it’s powder when you rub it on a hard, rough surface.
tiles
the colored powder left behind when a mineral is scraped across a hard surface like a ceramic tile which helps identify the mineral by its streak color.
color
its what light reflects back to our eyes. minerals are colored because they absorb some color of light and reflect the rest.
luster
how shiny a rock or mineral looks when light shines on it like a mirror or glassy or even dull ( luster is a physical property used by mineralogist to help identify minerals).
cleavage
how some minerals break along smooth flat lines instead of randomly like when you crack an egg.
scratch test
where you try to scratch a rock with different objects ( like a fingernail or a penny) to see if its hard or soft.
rocks
a naturally formed combination of minerals and other natural materials
minerals
a solid naturally formed substance that always has the same composition and the same properties `
sediment
the dirt and stuff that settles to the bottom of liquids or is carried and then deposited by water wind or ice
sedimentary
rock formed from compacted sediment
igneous
rock formed from magma or lava
metamorphic
rock formed from existing rock heat and pressure cause the minerals to form new combination or new crystals