today is september 27, 2013 get your notebook off the shelf and finish the questions from our...
TRANSCRIPT
Today is September 27, 2013•Get your notebook off the shelf and finish the questions from our Molecule Activity on Page 23. Make sure everything is glued in and DONE in your notebook. You have a notebook check today. •You also have a quiz today! So if your done, review your Reading and Graphic Organizer to study for this quiz. •You need to know:
What’s a mixture? What’s a compound? What‘s a element? What’s a molecule?
Elements• Pure substance that cannot be separated into
simpler substance by physical or chemical means.• Only has ONE CAPITAL LETTER
CompoundsPure substance composed of two or more different
elements joined by chemical bonds.–Has a chemical formula–Can only be separated by chemical means, not physically–Compounds have their own physical and
chemical properties that are different from other substances– The Chemical formula has TWO OR MORE
CAPITAL LETTERS.
H2O CO2NaCl
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
Element, Compound, or Mixture?
Cereal
Element, Compound, or Mixture?
Cereal
Element, Compound, or Mixture?
Copper
Element, Compound, or Mixture?
CopperCu
Element, Compound, or Mixture?
Jelly Beans
Element, Compound, or Mixture?
Jelly Beans
Element, Compound, or Mixture?
Table Sugar
Element, Compound, or Mixture?
Table Sugar
C 12H 22
O 11
Element, Compound, or Mixture?
Diamond
Element, Compound, or Mixture?
DiamondC
Element, Compound, or Mixture?
Tea
Element, Compound, or Mixture?
Tea
Element, Compound, or Mixture?
Salt
Element, Compound, or Mixture?
SaltNaCl
Element, Compound, or Mixture?
Neon Gas
Element, Compound, or Mixture?
Neon GasNe
Element, Compound, or Mixture?
Salad
Element, Compound, or Mixture?
Salad
Element, Compound, or Mixture?
Pure Water
Element, Compound, or Mixture?
Pure WaterH 2O
Element, Compound, or Mixture?
Aluminum
Element, Compound, or Mixture?
AluminumAl
Element, Compound, or Mixture?
Lemonade
Element, Compound, or Mixture?
Lemonade
Element, Compound, or Mixture?
Silver
Element, Compound, or Mixture?
Silver
Ag
Element, Compound, or Mixture?
Sand
Element, Compound, or Mixture?
Sand
Element or Compound?
Cl3
Element or Compound?
Cl3
Element or Compound?
NH3
Element or Compound?
NH3
Element or Compound?
CH4
Element or Compound?
CH4
Element or Compound?
N4
Element or Compound?
N4
Element or Compound?
FeN4
Element or Compound?
FeN4
CO2
CO2CO2
CO2
NN
N
N
N
H2O
H2O
H2O
H2O
Element, Compound, or Mixture?
CO2
CO2CO2
CO2
NN
N
N
N
H2O
H2O
H2O
H2O
Element, Compound, or Mixture?
Good Luck! • If you finish you may read or do work from another
class. • If you have finished your book and have no work go
to https://todaysmeet.com/chemical • Click on the link under Listen and watch the video
on fireworks. YOU MUST USE YOUR HEADPHONES!