Presented by: Isaac, Racheal, Andrew, Nick, and Jaclyn
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*All Matter is made up of tiny particles, such as atoms, molecules, and ions.
*An ion is an atom that is positively or negatively charged because it has gained or lost electrons.
*Matter is anything that takes up space and has mass, such as a pencil
*There are four states of matter solid, liquid, gas, and plasma
*Plasma
*All matter is made up of participles such as atoms, molecules, or ions
*Each particles attracts other particles and these particles are always in motion the motion and the strength of
the particles determine a materials state of matter
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*A solid is matter with a definite shape and
volume. For example, when you place a solid,
such as a stapler, inside a bucket it does not
take the shape of the bucket.
*The particles in a solid are constantly
vibrating in place but the particles do not
have enough energy to move out of there
fixed positions.
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*A crystal structure is composed of a unit cell, a set of
atoms arranged in a particular way; which is periodically
repeated in three dimensions on a lattice.
Crystalline solids are solids that have regular or nearly
regular crystalline structures and the atoms are arranged
in an orderly manner. An example of a crystalline solid is
Pop Rocks, Sugar.
*Diamond is made entirely of carbon atoms that form
crystals that look more like pyramids.
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A liquid is matter that has a definite volume but no definite shape
When you pour liquid from one container to the next, the volume stays the
same, but the liquid takes on a different shape of the new container, much
like pouring tea from a kettle into a teacup.
The paricles in liquids are free to move. They have enough energy to move
out of their fixed positions, but not very far, unlike solids.
A liquids resistance to flow is known as the liquids viscosity. The slower a
liquid flows, the high its viscosity. Honey has a high viscosity, but water
has a low viscosity.
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A liquids resistance to flow is known as the
liquids viscosity. The slower a liquid flows, the
high its viscosity. Honey has a high viscosity, but
water has a low viscosity.
For many liquids, viscosity increases as the liquid
becomes colder
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The uneven forces acting on the particles on the surface os a
liquid are called surface tension.
Surface tension causes the liquid to act as if a thin flim were
stretched across its surface.
Attractive forces cause the particles on the surface of a liquid to
pull themselves together and resist being pushed apart.
Particles at the surface of a liquid are pulled toward the center of
the liquid and sideways along the surface. No liquid particles are
located above to pull on them.
Surface tension exists because the particles at the surface
experience different forces than those at the center of the liquid.
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Unlike solids and liquids, most gases are invisible.
Oxygen is an example is an invisible gas.
Gas is matter that does not have a definite shape or volume.
The particles in gas are much farther apart than those in a
liquid or solid.
Gas particles move at high speeds in all directions.
Gases can expends and/or be compressed
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Pictures by Google
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Information by Textbook
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PowerPoint by Andrew, Isaac, Jaclyn, Nick, and Racheal
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http://www.youtube.com/watch?v=C33WdI64FiY&spfreload=
10&edufilter=ItIg2V4IIX_lr6ECGXKrag&safe=active