Classifying Matter: Elements, Compounds, and Mixtures - PowerPoint PPT Presentation

1 / 46
About This Presentation
Title:

Classifying Matter: Elements, Compounds, and Mixtures

Description:

Classifying Matter: Elements, Compounds, and Mixtures Click on box for video on Elements, Compounds and Mixtures Element, Compound, or Mixture? Pure Water Element ... – PowerPoint PPT presentation

Number of Views:505
Avg rating:3.0/5.0
Slides: 47
Provided by: Liz1161
Category:

less

Transcript and Presenter's Notes

Title: Classifying Matter: Elements, Compounds, and Mixtures


1
Classifying MatterElements, Compounds, and
Mixtures
Click on box for video on Elements, Compounds and
Mixtures
2
Pure Substances
  • A sample of matter that has definite chemical and
    physical properties. A pure substance can be an
    element or a compound.

Compounds
Elements
Atoms
Molecules
3
Elements
  • pure substance that cannot be separated into
    simpler substance by physical or chemical means.
    The smallest piece of the element is called an
    atom.

4
These are elements!
Atoms of same element
Molecules of same element
Hydrogen gas element
copper element
helium element
ozone
sodium element
5
Consists of only one kind of atom
Elements- Atoms
6
Compounds
  • Pure substance composed of two or more different
    elements joined by chemical bonds.
  • Made of elements in a specific ratio
  • that is always the same
  • Has a chemical formula
  • Can only be separated by
  • chemical means, not physically

H2O
NaCl
CO2
7
What is a compound?
Qn Is this a compound?
Qn Is this a compound?
Qn Is this a compound?
O
It only contains one type of element.
It only contains one type of element.
O
It is not chemically combined.
H
H
O
8
Compounds- Molecules
9
Mixtures
  • A combination of two or more pure substances that
    are not chemically combined.
  • substances held together by physical forces, not
    chemical
  • No chemical change takes place
  • Each item retains its properties
  • in the mixture
  • They can be separated physically

Chem4kids.com
10
Mixture
11
A mixture of 2 elements
A mixture of two elements, e.g. neon (Ne) and
hydrogen (H2)
12
A mixture of 1 element and 1 compound
A mixture of one element and one compound, e.g.
hydrogen (H2) and ammonia (NH3)
13
A mixture of 2 compounds
A mixture of two compounds, e.g. water vapour
(H2O) and carbon dioxide (CO2)
14
Mixtures vs. Compounds
http//www.bbc.co.uk/schools/ks3bitesize/science/c
hemistry/elements_com_mix_6.shtml
15
Can you identify the following?
  • You will be shown a series of photos. Tell if
    each photo represents an item composed of an
    element, compound, or mixture.
  • Review
  • An element contains just one type of atom.
  • A compound contains two or more different atoms
    joined together.
  • A mixture contains two or more different
    substances that are only physically joined
    together, not chemically.
  • A mixture can contain both elements and
    compounds.

16
Element, Compound, or Mixture?
  • Rocks

17
Element, Compound, or Mixture?
  • Rocks

18
Element, Compound, or Mixture?
  • Copper

19
Element, Compound, or Mixture?
  • Copper

Cu
20
Element, Compound, or Mixture?
  • Jelly Beans

21
Element, Compound, or Mixture?
  • Jelly Beans

22
Element, Compound, or Mixture?
  • Table Sugar

23
Element, Compound, or Mixture?
  • Table Sugar

C12H22O11
24
Element, Compound, or Mixture?
  • Diamond

25
Element, Compound, or Mixture?
  • Diamond

C
26
Element, Compound, or Mixture?
  • Tea

27
Element, Compound, or Mixture?
  • Tea

28
Element, Compound, or Mixture?
  • Salt

29
Element, Compound, or Mixture?
NaCl
  • Salt

30
Element, Compound, or Mixture?
  • Neon Gas

31
Element, Compound, or Mixture?
Ne
  • Neon Gas

32
Element, Compound, or Mixture?
  • Salad

33
Element, Compound, or Mixture?
  • Salad

34
Element, Compound, or Mixture?
  • Pure Water

35
Element, Compound, or Mixture?
  • Pure Water

H2O
36
Element, Compound, or Mixture?
  • Aluminum

37
Element, Compound, or Mixture?
  • Aluminum

Al
38
Element, Compound, or Mixture?
  • Lemonade

39
Element, Compound, or Mixture?
  • Lemonade

40
Element, Compound, or Mixture?
  • Silver

41
Element, Compound, or Mixture?
  • Silver

Ag
42
Element, Compound, or Mixture?
  • Sand

43
Element, Compound, or Mixture?
  • Sand

44
(No Transcript)
45
Create a Venn Diagram on your left side page in
your notebook!
Elements
Compounds
Mixtures
46
Notes
  • Detailed notes are located at
  • http//www.middleschoolscience.com/elements-compou
    nds-mixtures-notes-isn.pdf
  • Flow Chart
  • http//www.middleschoolscience.com/matter-flow-cha
    rt-isn.pdf
Write a Comment
User Comments (0)
About PowerShow.com