Chapter 9 Lesson 1-Properties of Matter
Vocabulary
1. Mass
2. Weight
3. Volume
4. Matter
5. Density
6. Buoyancy
Notes
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A property is something that can be observed about an object or a group of objects
Properties of matter can describe the amount of matter or what that matter is like
mass- compares the amount of matter in a sample to standard amounts
a tool we can use to measure mass is a balance
mass is measured in kilograms and grams
mass of an object is always equal to the sum of the masses of the pieces of the object
if an object has more it will also have more weight
weight-see vocabulary
weight is measured in Newtons 1 (N) = 0.22 Ibs
gravity is greater on planets with more mass
a tool is used to measure volume is called a graduated cylinder
graduated cylinder, beaker or measuring cup
volumes of solids are usually measured in cm3
1 cm3 – 1ml
density=mass/volume
buoyancy is the resenstance of sinking
it occurs because the fluid that is being pushed out of the way pushes back on the object
if the fluid is denser than the object the fluid, the fluid can push harder and the object floats
buoyancy depends on density
this skin is what surface tension means if an object is spread over the surface it can rest on this
skin even if it would not normally float. If an object is not spread out enough, it will break the
skin and sink
solids particles are tightly packed
solids has a definite shape and it takes up a definite amount of space
liquids move more freely
liquids takes the shape of the container its in
water is denser has a liquid than a solid
a liquid is the 2nd denses state of matter
gas- particles are not close together and they can move past each other easily
gas has no dephanit volume
if the volume of the container increases, the gas expands to fill it
gas is the least dense state of matter