Answer the question below: Compared to sound waves travelling through a cup of ice water, would sound waves travelling through a cup of boiling water move slower or faster?? Assuming that: For a given medium, sound waves travel more slowly at lower temperatures.
faster?

Answer the question below: Derek felt cold as he stood in the shade, and since his body was cooling down, he knew that his blood vessels in his skin were expanding or contracting? Assuming that: When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.
contracting

Answer the question below: When we move around very little we feel warmer or colder? Assuming that: When particles move more quickly, temperature is higher and an object feels warmer.
colder

Answer the question below: Chris needs a resistor for a science experiment he is conducting in class. He needs it to have the greatest resistance possible. If the second resistor is half as long as the first one, then the first one or second one will have the greater resistance? Assuming that: The longer the resistor, the more resistance it has.
first one