PASS THE SALT
Apparatus
• 2 plastic green containers,3 plastic orange containers,3plastic blue containers,2 plastic red containers, and 2 yellow containers
• Observations book and pencil
• Plastic spoon and cup
• Scale
• Utility knife
• 4 pieces of rubber
• 4 unpainted pieces of steel and four pieces of painted steel
• Bean seeds
• Rubber gloves
• Sifto Rock Salt (sodium chloride) 10kg $2.99 $0.30/kg
• Stone Mason (calcium chloride) 2.72kg $4.49 $1.65/kg
• Alaskan Ice Melter (calcium chloride/sodium chloride/urea) 4.45kg $4.79 $1.05/kg
• Big Everest (magnesium chloride) 3.63kg $12.99 $3.57/kg