science test mod 5 and 6

astrology and astronomy

atmosphere

the gaseous layer surrounding earth or heavenly body

astronomy

the branch of science that deals with physical universe beyond’gs earth’s atmosphere

gravity

a force of attraction existing between any 2 masses

satellite

a natural of artificial body orbiting a planet or star

geology

The study of earths physical structures it history the process acting on it and the rock of which it is composed

Humas

the decayed remains of once living creatures

minerals

inorganic crystalline substances found naturally in earth

erosion

the process of wearing or grinding something down by natural agents

unconformity

a surface of erosion that separates on layer of rock from another

fossil

the preserved remains of once living organisms

friction

the action of one surface material rubbing against another

total eclipse

when the sun and ability earth line up in just the right way and the moon blocks the ability to see

albedo

the amount of light or radion reflected by a surface typically that planet or moon

what is a galaxy

an organized system of millions of billions of stars, gas, solar system and dust that are held together by a gravitational force

what are the main 3 layer of the earth

crust mantle core

what are the 3 main rocks, and describe each one

sedimentary- full of sediments

igneous - is made melted rock or molten rock

metamorphic -rock that changes often from heat or pressure

physical weathering

is when a large rock are broken into smaller rock from physical weathering like ice, temp changes, sand and water

chemical weathering

is when a mineral rock reacts with air or changing compassion

stalactites

they are created when mineral - rich water seeps down cracks in cavern roof

stalagmites

they are formed below stalactites as water hits a cavern floor

what is it called when these two meet

column

petrification

when organisms materials chemically changes into rock

most of earth’s sediments are laid down by what material

water

what does ROY GBIV stand for

red, orange, yellow , green, blue, indigo, violet

do temp get higher as you deeper into the earth

yes