High school???
No way
It's work.
        
             
        
        
        
Answer:
12 mins
Explanation:
The distance covered is 5 km, divide this by 25 to get the fraction of an hour it takes. Doing this you get .2, times this by 60 min (1 hour) to get how many mins it takes
 
        
             
        
        
        
Answer;
The temperature change for the second pan will be lower compared to the temperature change of the first pan
Explanation; 
-The quantity of heat is given by multiplying mass by specific heat and by temperature change.
That is; Q = mcΔT
This means; the quantity of heat depends on the mass, specific heat capacity of a substance and also the change in temperature. 
-Maintaining the same quantity of heat, with another pan of the same mass and greater specific heat capacity would mean that the change in temperature would be much less lower.
 
        
             
        
        
        
It's number three on your worksheet. ;)