5.9 and 5.10

Tell the person next to you…

·         

How do particles in move in a solid, a liquid and a gas?

·         Describe…

o    speed of particles - The particles in solid vibrates, therefore they have the slowest speed. Liquid has a faster speed while gas is the fastest.  

o    relative position of particles (fixed or not) - Solid vibrates in a fixed position while liquid and gas do not.

o    pattern of particles (regularly arranged or not) - Only solid has a regular arrangement while liquid and gas do not. 

o    size of the particles - Solid has the smallest particle size. Liquid's particles are bigger, and gas has the biggest particle size. (They expand due to heat absorbed during the change of state.)

o    space between the particles - Solid vibrates in a fixed position so the particles are packed closely together. Liquid move around but still slide past each other, so the particles are also in a close position. Gas move around freely in random motion and therefore there are very large space between particles.

o    strength of bonds between the particles - Solid has very strong bond between particles, while liquid has a weaker bond. Gas has a very weak bond (weakest compared to the other two). 

			Use the animation to verify your answers

·         5.9 recall that particles in a liquid have a random motion within a close-packed irregular structure

·         5.10 recall that particles in a solid vibrate about fixed positions within a close-packed regular structure

·         Complete the missing words in the table below

·         Cut and paste the particle images into the table

State	Particle Picture	Arrangement of Particles	Motion of Particles	Other Properties
Solid

·          Closely packed

·         regular pattern

·         Vibrate about a fixed position

·         Fixed shape

·         not easily compressed since particles are closely packed

·         Strong bonds

Liquid

·          Closely packed

·         no pattern

·         free to flow over each other

·         takes shape of its container

·         can be poured

·         not easily compressed since particles are closely packed

·         Weak bonds

Gas

·          widely spaced

·         no pattern

·         very fast moving

·         random directions

·         fills its container

·         can be poured