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Properties of Matter

covers states of matter, physical and chemical changes and density
by karen ridenour on 9 September 2012

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Transcript of Properties of Matter

Properties of Matter Matter is anything that has mass and volume LIQUIDS
have a definite volume
but not a definite shape, liquids take the shape of the container which it occupies

Particles (atoms or molecules)
in liquids are close together
but are free to move around. SOLIDS
have a definite shape and volume
molecules are packed tightly together
the particles are rigid and locked in place


Atoms in a solid are packed close together and vibrate in place Gases
have NO definite volume or shape
gases take the shape and size of the
container it is in
Gas molecules move about freely and very very rapidly

Air is a mixture of gases. Most
gases are invisible. VAPOR is gas occurring at a
temperature where the substance
is usually liquid or solid. Water
vapor, for example, is gaseous
water at room temperature. PLASMA is the state of
matter that is like a gas
but is made of electrically-
charged particles and is
very hot. The sun and other stars are made
of plasma. Plasma occurs inside
neon lights and in the tiny pixels
of a plasma TV screen. Matter does not have to be visible.
Air is matter because it takes up space and has mass. Solids liquids gases plasma Examples of Matter:
Bricks
Tables
Chairs
Air
Water Examples of Non-Matter:
Emotions
Temperature
Energy
Words FOUR - States of Matter
Does it really matter? It Does Matter But there's still one more property
DENSITY WHAT IS DENSITY? Density is the amount of mass packed into a given volume
but wait what is mass and volume? Density= Mass/Volume Every substance has its OWN density.
This will be important when we get to the periodic table Grams/mL - Liquids or Grams/cm3 - Solids Units Matter Can Undergo 2 Kinds of Changes
Physical and Chemical Chemical change is any change that results in the formation of new substances that have properties different from those of the original substances
These changes are chemical:

eggs cooking (fluid protein molecules uncoil and cross link to form a network)

bread rising (yeast converts carbohydrates
into carbon dioxide gas)

milk souring (sour-tasting lactic
acid is produced) Physical change rearranges molecules but doesn't affect their physical structures such as size and shape.
Some examples of physical change are:

whipping egg whites (air is forced into the fluid, but no new substance is produced)

boiling water (water molecules are forced away from each other when the liquid changes to vapor, but the molecules are still H2O.)

dissolving sugar in water (sugar molecules are dispersed within the water, but the individual sugar molecules are unchanged.)

dicing potatoes (cutting usually separates molecules without changing them.) Mass
the amount of 'stuff' in an object
measured with a balance
measured in units of grams Volume
the 'space' a 3-D object takes up
measured in cubic units for solids
measured in milliliters for liquids http://preparatorychemistry.com/KMT_flash.htm Kablam Even the most minimal movement can endow
an image with life. A few tips: 1. In Prezi, the viewer can explore time and space freely.
So it's best to create animations that can be viewed again and again, going on forever. Think in terms of LOOPS. 2. It's okay to keep it SIMPLE. You can be as precise as you like, but most movement ideas can be expressed with just 2 or 3 images. 3. fig. 1 fig. 2 Use the Path to create
CAMERA MOVEMENTS. You can create special motion dynamics if you play around with the angle and placement of images that follow each other in a path. 4. ZOOM around. It's Prezi's speciality, and great for visual games. ...and most
viewers
identify themselves
easier with
living things. Also, you don't actually have to draw in order to create an animation.
Just use simple shapes, or drag a photo sequence into Flash. Animation in Prezi Loop Zoom Here, the trick was to turn the bottom image upside down.
(Rotate using the Zebra.)
The resulting movement on the Path creates a feeling of
falling over. Here, the illusion of speed is created by placing marks with various spacing along the Path between two frames. Surprise your audience with
unexpected changes
in ratio, optical illusions and
hidden details. It's easy to load
.swf files into prezi! ...and don't forget:
there is a lot to
explore in Prezi so be on the
lookout for
new ideas! Kablam Even the most minimal movement can endow
an image with life. A few tips: 1. In Prezi, the viewer can explore time and space freely.
So it's best to create animations that can be viewed again and again, going on forever. Think in terms of LOOPS. 2. It's okay to keep it SIMPLE. You can be as precise as you like, but most movement ideas can be expressed with just 2 or 3 images. 3. fig. 1 fig. 2 Use the Path to create
CAMERA MOVEMENTS. You can create special motion dynamics if you play around with the angle and placement of images that follow each other in a path. 4. ZOOM around. It's Prezi's speciality, and great for visual games. ...and most
viewers
identify themselves
easier with
living things. Also, you don't actually have to draw in order to create an animation.
Just use simple shapes, or drag a photo sequence into Flash. Animation in Prezi Loop Zoom Here, the trick was to turn the bottom image upside down.
(Rotate using the Zebra.)
The resulting movement on the Path creates a feeling of
falling over. Here, the illusion of speed is created by placing marks with various spacing along the Path between two frames. Surprise your audience with
unexpected changes
in ratio, optical illusions and
hidden details. It's easy to load
.swf files into prezi! ...and don't forget:
there is a lot to
explore in Prezi so be on the
lookout for
new ideas! so be on the
lookout for
new concepts! ...there is a lot to
explore in science Why Does Ice Float in a Glass?????
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