Astudent wanted to see what the affect of temperature is on glow sticks. he activated three glows sticks and put one in hot water, one in cold water, and one in room temperature water. he rated how “bright” each glow stick was on a scale of 1 to 10. what was the dependent variable in his experiment? a) how bright the glow sticks were. b) water temperature c) amount of water

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

: )

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.