What was the purpose of Watson and cricks experiment?

What are metals that can be stretched easily called? What is it called when water vapor turns to ice? What happens if your not on your period but blood comes out? What is adukw? How many miles are there in 910 centimeters? Is traffic a concrete or abstract noun? What instrument could be used to measure a mole of solid solute particles? What is the the space occupied by an object or fluid? What in onoins make you cry? What does that? How many sheets on a average roll of toilet paper? What is a synonym for wondered? Why is it important to acquire the right attitude during an investigation? The toothpick's mass production in America is primarily due to what mans work? What is 67 degrees Celsius? Describe Shiprock a famous volcanic feature in New Mexico as best as you can? What is the average kinetic energy of all the molecules in an object? What starts air pollution? Properties of Waves? What is the term used for the variable that receives an argument that is passed into a module?