Science Crime BustersScience Crime Busters

FLOW CHART

Water

Soluble Insoluble Bubbles Cloudy/odor

NaCl, NaHCO3, CaSO4, CaCO3, NaC2H3O2, sugar, sand, Vitamin C (ascorbic acid), cornstarch, flour, yeast, gelatin, Alka Seltzer

Swells

Go On Go On

Gelatin Alka Seltzer

Yeast

Gelatin

Go Back

Go Back

Alka Seltzer

Yeast

Go Back

KI3

Observe Color Before Adding KI3, or Observe Mixture Dissolution

Insoluble

NothingDeep Blue

Add Vinegar (Acid)

Bubbles No BubblesOff White Pure White

Brown/Tan/ Yellowish

Flour Corn Starch Limestone Plaster of

Paris

Sand

Go On

Go On

Go Back

Flour Cornstarch

Go On

Flour Cornstarch

Go Back

Go Back

No Bubbles Bubbles

CaSO4 CaCO3

pH paper

Soluble/ Clear Solution

Base Neutral

Add Vinegar (acid)

Bubbles No Bubbles

Acid

Observe Crystals

CubicHexagonal

Sugar SaltBicarbonate

of soda

Sodium Acetate

Vitamin C

Vitamin C

Go On

Go On

Go Back

Sodium Acetate Sodium Bicarbonate

Go Back

Sugar

Go On

Sodium Chloride

Go On

Appearance

Metals

Yellow-orangeSilvery Gray or

BlackSilvery or Gray

Silvery or Gray

CuMagnet

None None None Attraction

FeHCl

bubbles none none

Zn

Use density test or tin more malleable than aluminum

Jack CairnsJack Cairns

DirectorDirector

Delaware Science Resource Delaware Science Resource CenterCenter

Co-DirectorCo-Director

Science OlympiadScience Olympiad

jcairnsc@aol.comjcairnsc@aol.com