Sea water
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what is particle theory?
A theory that describes the bulk properties of the different states of mater in terms of the movement of particles (atoms or molecules). The theory enplanes what happens during changes in physical state.
What is kinetic energy?
The energy possessed by objects or particles due to movement.
what is temperature?
The measurement of the kinetic energy of the particles in the material.
name the 3 states of mater.
solid, liquid and gas.
describe the arrangement of particles in a liquid?
particles closely packed together; just enough space to move past each other.
describe the arrangement of particles in a solid.
particles closely packed together; not enough space for particles to move past each other.
describe the arrangement of particles in a gas.
particles far apart from each other; lots of space for particles to move past each other.
describe the movement of particles in a solid.
particles vibrating against each other in fixed positions.
describe the movement of particles in a liquid.
particles vibrating against each other and flowing past each other.
describe the movement of particles in a gas.
particles moving fast, colliding with each other.
what is the water cycle?
the cycle of processes by which water circulates between the worlds oceans.
what happens to the particles when a substance cools down?
the particles loose kinetic energy and start to move closer together. when gas cools to the temperature of it’s boiling point the particles release latent heat energy and move closer together to form a liquid.
what happens to the particles when a substance is heated.
the particles speed up and move further apart.