Answer:
Using cobalt glass could be helpful to identify elements that weakly emit blue and/or violet.
Explanation:
Answer:
This is what I put, it hasn't been graded though...
Within the system, the energy is flowing from your hand to the ice cream cone. Energy is also flowing from the surroundings to the ice cream cone unless it's reeeeaally cold in the surroundings in which case why are you even holding an ice cream cone when it's that cold?
Answer:
make an observation is number one number two is ask a question number three is form a hypothesis number number five isa test the prediction.