The Universal Space Agency wants to know the results of your Sim investigation. Write your report to the lead chemist, explaining why the staff can smell the chocolate bar. Use evidence from your investigation in your explanation.

electrical to thermal

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.