Properties of Matter - PowerPoint PPT Presentation

Loading...

PPT – Properties of Matter PowerPoint presentation | free to download - id: 450e78-ZjgxM



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Properties of Matter

Description:

Properties of Matter * Definition of Conservation of matter. * * The two categories of pure chemical substances. * Phase Changes of Water ICE WATER STEAM ... – PowerPoint PPT presentation

Number of Views:252
Avg rating:3.0/5.0
Slides: 53
Provided by: Mich435
Learn more at: http://www.wsfcs.k12.nc.us
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Properties of Matter


1
Properties of Matter
2
Matter
Anything that has mass and takes up space
3
Mass
  • the amount of matter in an object

4
Mass
  • the amount of matter in an object
  • measured with a balance

5
Volume
  • the amount of space (capacity) an object takes up

6
Volume
  • the amount of space (capacity) an object takes up
  • measured with a ruler or graduated cylinder

7
Physical Properties
  • Are characteristics or features that describe
    matter

8
What is density?
9
What is density?
  • Density is a comparison of how much matter there
    is in a certain amount of space.

10
What is density?
  • Density is a comparison of how much matter there
    is in a certain amount of space.
  • The more matter in a certain space, it will sink.
    Less matter it will rise

11
Which one is more dense?
  • Demonstration People in a room or in a field
  • How about this Which square is more dense?

12
Which one is more dense?
  • Now which one is more dense?

13
What is density?
  • Density mass OR mass volume.
  • volume
  • Units for density g .
  • cm3
  • Why are these the units for density?

ALWAYS REMEMBER UNITS!
14
Examples of physical properties include
  • color
  • size
  • shape
  • texture
  • smell
  • temperature
  • state

15
Chemical Properties
16
Chemical Properties
  • Are properties that do NOT change as mass, volume
    and/or shape change.

17
Chemical Properties
  • Are properties that do NOT change as mass, volume
    and/or shape change.
  • Are properties of a substance, not a specific
    object

18
Examples include
  • boiling point
  • melting point
  • solubility
  • conductivity
  • hardness
  • pH
  • flammability
  • density

19
Examples of Chemical Properties/Changes
Burning Rusting Cooking Film Processing
(Any change that causes NEW matter to be formed)
20
Law of Conservation of Matter
There is no observable change in the quantity of
matter during a chemical reaction or a physical
change. In other words, matter cannot be created
nor destroyed. It is just converted from one
form to another (just like energy)
21
States of Matter
  • Solid
  • Liquid
  • Gas
  • Plasma

22
Solids
23
Solids
  • Have definite shape and definite volume

24
Solids
  • Have definite shape and definite volume
  • Particles are tightly packed

25
Solids
  • Have definite shape and definite volume
  • Particles are tightly packed
  • Molecules are held close together and there is
    very little movement between them.

26
Liquids
27
Liquids
  • Do not have definite shape but do have definite
    volume

28
Liquids
  • Do not have definite shape but do have definite
    volume
  • Particles are loosely packed

29
Liquids
  • Do not have definite shape but do have definite
    volume
  • Particles are loosely packed
  • Atoms and molecules have more space between them
    than a solid does, but less than a gas (ie. It
    is more fluid)

30
Gases
31
Gases
  • Do not have definite shape or definite volume

32
Gases
  • Do not have definite shape or definite volume
  • Particles are very far apart

33
Gases
  • Do not have definite shape or definite volume
  • Particles are very far apart
  • Molecules are moving in random patterns with
    varying amounts of distance between the
    particles.

34
Phase Changes of Water
  • ICE WATER STEAM

melting freezing
evaporating condensing
(solid) (liquid) (gas)
35
Plasma
Plasma is different from a gas, because it is
made up of groups of positively and negatively
charged particles
36
Plasma
  • You don't find naturally occurring plasmas too
    often when you walk around. They aren't things
    that happen regularly on Earth.
  • If you have ever heard of the Northern Lights,
    you might know that those are types of plasmas.
    It takes a very special environment to keep
    plasmas going.

37
Star formation in the Eagle NebulaSpace
Telescope Science Institute, NASA (below)
Northern Lights
38
Products manufacturedusing plasmas impact our
daily lives
39
  • EXAMPLES
  • Computer chips and integrated circuits
  • Computer hard drives
  • Electronics
  • Machine tools
  • Medical implants and prosthetics
  • Audio and video tapes
  • Aircraft and automobile engine parts
  • Printing on plastic food containers
  • Energy-efficient window coatings
  • High-efficiency window coatings
  • Safe drinking water
  • Voice and data communications components
  • Anti-scratch and anti-glare coatings on
    eyeglasses and other optics

40
  • While natural plasmas aren't found around you
    that often, man-made plasmas are everywhere.
  • Think about fluorescent light bulbs. They are not
    like regular light bulbs. Inside the long tube is
    a gas. Electricity flows through the tube when
    the light is turned on. The electricity acts as
    an energy source and charges up the gas. This
    charging and exciting of the atoms creates
    glowing plasma inside the bulb.

41
Properties of Matter include
  • How it looks (shiny, dull, colored)
  • How it feels (hard, soft, rough, smooth)
  • How it smells (sweet, salty, flowery)
  • How it sounds (loud, soft, hollow)
  • How it tastes (sweet salty, bitter, sour)
  • What it does (bounce, bubble, tear)

42
So what makes up matter?
43
Atoms
  • The building blocks of Matter
  • Consists of Protons (), Electrons (-),
  • and Neutrons (N).

Elements
  • Consists of only one kind of atom,
  • Cannot be broken down into a simpler type of
    matter by either physical or chemical
    means
  • Can exist as either atoms or molecules.

Images are from http//www.chem4kids.com
44
Elements
  • There around 120 elements, and when you combine
    them you can make millions of molecules.
  • ( We sometimes use the terms atom and element to
    mean the same thing. Remember, atom is the
    general term. Everything is made of atoms. The
    term element is used to describe atoms with
    specific characteristics)

45
(No Transcript)
46
Molecules
  • A molecule consists of two or more atoms of the
    same element, or different elements, that are
    chemically bound together.
  • In the animation above, two nitrogen atoms
  • (N N N2) make one Nitrogen molecule
  • Two hydrogen atoms and one oxygen atom (H
    HOH2O) makes a water molecule.

47
compounds
  • substances made of two or more elements combined
    chemically
  • compounds have properties different from those of
    the original elements
  • examples
  • water hydrogen and oxygen
  • salt sodium(Na) and chlorine (Cl) Sodium
    Chloride

48
Pure Substances VS Mixtures
  • Matter can be classified in two broad categories
    pure substances and mixtures

49
What are "substances"?
  • Substances can be identified as either an
    element, compound, or a mixture.

50
Mixtures
  • combination of two or more substances that are
    not chemically combined
  • examples
  • salad
  • frosted cake
  • kool-aid

51
What is a pure substance?
  • Elements
  • Cannot be decomposed into simpler substances by
    chemical changes
  • Compounds
  • Can be decomposed into simpler substances by
    chemical changes, always in a definite ratio

52
  • more exciting adventures will follow
About PowerShow.com