'(Cheryl of the Clue Crew reports from Colorado)  As snowflakes are frozen water vapor, they're made up of these 2 chemical elements'
hydrogen & oxygen
SCIENCE CLASS: As snowflakes are frozen water vapor, theyre made up of these 2 chemical elements
As snowflakes are frozen water vapor, they're made up of these 2 chemical elements
As snowflakes are frozen water vapor, they're made up of these 2 chemical elements
SCIENCE CLASS
hydrogen & oxygen
SCIENCE CLASS