"Ward's Science"

Drosophila melanogaster, the common fruit fly, is widely used in genetic studies. They express a number of mutations such as eye, wing, and body mutations.

CAS Number: 144-55-8
Formula: NaHCO3
Density: 2.16 g/mL
Boiling Point: Decomposes
Solubility: Water
Synonyms: Baking Soda, Sodium Hydrogen Carbonate, Carbonic Acid Sodium 1:1, Indicator Powder
Shelf Life: 36 Months

CAS Number: 10326-27-9
Formula: BaCl2·2H2O
Density: 3.1 g/mL
Boiling and Freezing Point: 1560°C, 925°C
Solubility: Water
Synonyms: Barium Dichloride
Shelf Life: 36 Months

CAS Number: 10102-17-7
Formula: Na2S2O3 5H2O
Density: 1.685 g/mL
Boiling and Freezing Point: 100°C, 48°C
Solubility: Water
Synonyms: Sodium Thiosulfate Pentahydrate
Shelf Life: 12 Months

CAS Number: Mixture
Boiling Point: Decomposes
Synonyms: Bacterial Amylase 50,000 BAU/g, Alpha-Amylase
Shelf Life: 36 Months
Storage: Green

Meets AP Science Practices 1, 2, 4, 5, 6, and 7

A basal medium containing a single carbohydrate used to determine whether bacteria can ferment the specific carbohydrate. The medium contains a pH indicator that changes from red to yellow if the bacteria can ferment the carbohydrate.

Drosophila melanogaster, the common fruit fly, is widely used in genetic studies because they express a number of mutations such as eye, wing, and body mutations.

CAS Number: 7447-40-7
Formula: KCl
Density: 1.986—1.990 g/mL
Boiling and Freezing Point: 1500 °C, 772 to 776 °C
Solubility: Water and Alcohol
Synonyms: Muriate of Potash, Potassium Muriate, Potassium Monochloride
Shelf Life: 36 Months

Liquid antiserums are pooled and ready to use.

Add to prepared agar or broth to select antibiotic-resistant bacterial strains.

How does a glow stick work?

Learn about polymer chemistry polymer properties like cross-linking and super-absorbance.

Ward's Digital Slides Powered By Motic®

The Tube of Toothpaste Demo takes the decomposition of hydrogen peroxide to a new level by adding soap and food coloring.

How do scientists identify an unknown solution?