Black + White + Blue = ?

Hmm ,
Today PE , boys need to do high jump .
Could not jump high as leg haven recovered fully yet .
After PE , maths for 1 period , learned abit of chapter 4 .

After Recess , Geo .
Passed up Geo Records , and got back the two tests .
Science went to lab to do experiment on Light .
I connected the light bulb to the wires than the batteries , keep dun have light one .
Either the bulb , wire or the batteries got problem .