– WHAT IS THE
DIFFERENCE BETWEEN A
PHYSICAL CHANGE AND A
CHEMICAL CHANGE?
9/16
Card Sort
■ Groups of 2-3
■ Sort the cards between physical change and
chemical change
■ Complete the WS after you sort the cards
– DRAW AND LABEL:
SOLID, LIQUID, GAS
9/17
MATTER AND
CHANGE
Chapter 2
Properties of Matter
■ Anything that has mass and takes up space
■ 3 main types of matter:
– Solid
– Liquid
– Gas
#16
Physical Change
■ Properties of a material change, but the composition
does not
– Could be reversible or irreversible
■ Boil, freeze, melt, condense, heat
■ Break, split, grind, cut, or crush
Card Sort
■ Broken test tube?
■ Forging a sword?
■ Dew on the grass?
■ Heating a skillet?
■ Sanding wood?
■ Grating cheese?
■ Melting Ice?
Physical
Change
Mixtures
■ Blend of two or more components
– Ex. Salad (Heterogeneous)
– Ex. Salt Water (Homogeneous)
– Ex. Air (Homogeneous)
■ Can you separate a mixture?
Pg. 40 Textbook, Pg. 18 Workbook
■ Present Major Project
– WHAT IS THE
DIFFERENCE BETWEEN
HOMOGENOUS AND
HETEROGENOUS MIXTURES?
9/18
– WHAT WILL YOU DO THIS
WEEKEND FOR NATIONAL DAY?
9/20
Penny Drop Lab
Group
Wafi
Rayan
Why the difference?
Average Drops
15
15.3
Rashed
15
Nasser
17.5
What about the soap?
Chemical Change
■ A change that produces matter with a different
composition than the original matter
■ Change in color, production of a gas, formation of a
precipitate, transfer of energy
■ Burn, rot, rust, decompose, ferment, explode,
corrode, tarnish
Card Sort
■ Precipitate formed?
■ Silver tarnishing?
■ Sun tanning?
■ Gas formed?
■ Baking a cake?
■ Cooking eggs?
■ Toasting bread?
■ Popping popcorn?
■ Toasting marshmallow?
Chemical
Change
Substance vs. Mixture
Page 21 in workbook
Element vs. Compound
Simplest Form