Now urgent this is for tutoring halp meh

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Acontrol during an experiment. might change remains constant does not exist does change

Which tool is least in predicting weather