sound structure of earth atoms ecosystems plants
100
What is sound
vibrations that travel through the air or another medium and can be heard when they reach a persons or animals ear
100
What is plate
the lithosphere is broken into separate sections
100
What is atom
tiny particles that make up everything
100
What is mid ocean ridge
the wind beneath earths oceans
100
What is biotic
a living organism
200
What is echo
a reflected sound wave
200
What is scientific theory
a well tested concept that explains a wide range of observations
200
What is a proton
a pomposity charged elementary particle
200
What is sonar
is a device that bounces sound waves from under water
200
What is abiotic
a non living organism
300
What is elacity
the ability of a material to bounce back after being disturbed
300
What is plate tectonics
state that pieces of earths lithosphere are in slow
300
What is neutron
a uncharged elementary particle
300
What is sea-floor spreading
the sea floor spreads apart along both sides of a mid ocean ridge
300
What is biome
a major regional or global enviroment
400
What is density
how much matter or mass there is in a given amount of space or volume
400
What is fault
breaks in earths crust where rocks have slipped past each other
400
What is mass
the particle that makes up matter
400
What is deep ocean trench
the ocean floor hangs into deep underwater canyons
400
What is producer
are the source of all the food in an ecosystem
500
What is ultrasound
sound waves with frequencies above the normal human range of hearing
500
What is rift valley
form along the divergent boundaries
500
What is matter
everything that is made up of atoms
500
What is subduction
the process by which ocean floor sinks
500
What is
cunsumors that eat only plants






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