Earthquakes & Volcanoes
Scientists use this tool to measure the strength of an earthquake/
Seismograph
This is the process that breaks rocks down into smaller pieces.
Weathering
These tiny "powerhouses" of the cell make energy.
mitochondria
This molecule is made of two hydrogen atoms and one oxygen atom.
water
This material does not allow electricity to flow easily.
an insulator
This scale is used to rate the magnitude of an earthquake.
Richter Scale
This type of weathering changes the minerals in rocks, like when acid rain wears them down.
Chemical weathering
Plant cells have this stiff outer layer that animal cells do not.
cell wall
These tiny particles are found in the center (nucleus) of an atom.
protons and neutrons
This kind of circuit has only one path for electricity to follow.
series circuit
A bowl shaped opening at the top of a volcano.
This kind of weathering happens when water freezes and expands in the cracks of rocks
Frost wedging
This is the basic unit of life in all living things.
cells
This negatively charged particle orbits around the nucleus of an atom
electron
This is where the force in a magnet is the strongest.
the poles
The place deep underground where magma collects before an eruption
When wind blows sand and wears down rock surfaces, this type of erosion occurs
wind erosion
This part of the plant cell uses sunlight to make food.
chloroplast
This number tells you how many protons are in an atom of an element.
atomic number
This is the source of energy in a simple electric circuit.
a battery
The area around the Pacific Ocean known for frequent earthquakes and volcanoes.
This is the process that moves weathered rock and soil from one place to another.
erosion
The largest group in classification is called this.
kingdom
This type of bond forms when atoms share electrons.
covalent bond
This is created when electricity flows through a wire and produces a magnetic field.
electromagnet