Input: Answer this question:
A recycling plant manager needs to melt 1500 kg of scrap copper to sell to a wire manufacturer. The copper is at 15C and its melting point is 1083C. The copper has a specific heat of 385 J/kg x K. How much heat is required to raise the temperature of the copper to its melting point?
OPTIONS:
- 6.2 x 10^8 J
- 6.3 x 10^8 J
- 7.7 x 10^8 J
- 7.9 x 10^8 J
Answer: 6.2 x 10^8 J

*Question*: Which is an example of a group of cells with a common structure and function? OPTIONS:
- stomach
- muscle tissue
- mitochondria
- digestive system
*Answer*: muscle tissue

question:
When oil is burning, the reaction will
OPTIONS:
- only release energy
- only absorb energy
- neither absorb nor release energy
- sometimes release and sometimes absorb energy depending on the oil

answer:
only release energy

[Q]: Whenever scientists carefully measure any quantity many times, they expect that
===
OPTIONS:
- all of the measurements will be exactly the same
- only two of the measurements will be exactly the same
- all but one of the measurements will be exactly the same
- most of the measurements will be close but not exactly the same
****
[A]: most of the measurements will be close but not exactly the same

question below:
Which of the following is an example of heat transfer by conduction?
OPTIONS:
- a whole metal spoon getting hot when one end is in hot soup
- the inside of a car in the sun getting very hot
- a tar road getting hotter in the sun than a concrete sidewalk
- a fireplace fire heating a room on a cold day
answer below:
a whole metal spoon getting hot when one end is in hot soup

During which process does a caterpillar become a butterfly?
===
OPTIONS:
- fertilization
- metamorphosis
- asexual reproduction
- biological adaptation
metamorphosis