Physical and Chemical
Change
STATIONS 1- 6
30 POINT TEST ON FRIDAY
KNOW THE DIFFERENCE BETWEEN PHYSICAL AND
CHEMICAL PROPERTIES & PHYSICAL AND CHEMICAL
Station 1
Observations - physical properties of
vinegar and salt
Mix salt and vinegar - physical change
Drawing of penny before and after
submersion in liquid mixture
Penny color change - chemical change
Bolt corrosion, rust & bubbles - chemical
Before After
Before After
Before
Solution
After
Solution
Station 2
Observations - Physical properties of
vinegar and baking soda (sodium
bicarbonate)
Bubbles - chemical change
Temperature change - warm to cool chemical change
Station 3
Observations - Physical properties of
granules and water
Granules - sodium polyacrylate
Used in disposable diapers
Can absorb 800% its weight in water
Absorption/ gel forms - physical change
Station 4
Observations - Physical properties of the
Alka-Seltzer tablet and water
Tablet has baking soda (sodium
bicarbonate) and citric acid
When sodium bicarbonate and citric
acid react in water . . .
Bubbles - Chemical change
Station 5
Observations of cabbage juice, vinegar
(acetic acid) and baking soda (sodium
bicarbonate)
Acid turns this indicator pink
Bases turn this indicator blue/green
Color change - chemical
Station 6
Observations - Physical properties of
cornstarch and water
Mixture - physical change
Evaporation of water - physical change
Just One of Those Days
Check your answers!
30 POINT TEST ON FRIDAY
KNOW THE DIFFERENCE BETWEEN PHYSICAL
AND CHEMICAL PROPERTIES & PHYSICAL
AND CHEMICAL CHANGE