Response and change 2
restless earth
restless earth 2
Astronomy
Astronomy 2
100

a nerve fiber that carries messages away from the cell body is an 

axon 

100

hot molten rock below earths surface is called

magma 

100

a steep volcano  built up from a rain of many sizes of hot rocks is an 

cinder-cone volcano 

100

an extremely bright and very distant high- energy source is a 

quasar

100

the distance between from peak to the next on a wave is the 

wavelength 

200

the time in life when a person becomes physically able to reproduce is callled

puberty 

200

a wide, gently sloped cone that forms from flows of lava is a 

shield volcano 

200

vibrations that spread out away from the focus of an earthquake are 

seismic waves 

200

an enormous cloud of dust and gas in space that is the first stage of star formation is 

nebula 

200

everything that exists is the 

universe 

300

the sum of all chemical reactions that occur in your body is called 

metabolism 

300

the breaking down of rocks into smaller pieces by natural means is called 

weathering 

300

a rocks age in years to its 

absolute age 

300

a meteoroid that enters earth's atmosphere and burns with a streak of light is called a 

meteorite 

300

a star and all the objects orbiting it is a 

solar system 

400

an organism in the early stages of development is a 

embryo 

400

a jumble of many sizes  of sediment deposited by a glacier is called 

till 

400

rock which is formed from bits and pieces of other rocks is called 

sedimentary rocks 

400

an object with such a strong gravity that no light can escape it is a

black hole 

400

a band of colors made when white light is broken up is a 

spectrum 

500

a nerve cell that picks up stimuli and sends impulses to the brain is a 

sensory neuron 

500

when scientists compare the ages of two rocks, they are finding the 

relative age 

500

spaces between soil and rock particles may be filled with 

groundwater 

500

Earth takes 364 1/4 days for one 

revolution 

500

a complete spin on an axis is an

rotation