December
2025
Horizon Science Academy Columbus High School Events
Dec
1
Mon
No School - Staff PD
Horizon Science Academy Columbus High School Events
Dec
3
Wed
ELA2 OST (Westerville)
Horizon Science Academy Columbus High School Events
Dec
4
Thu
Alg1 OST (Westerville)
Horizon Science Academy Columbus High School Events
Dec
5
Fri
Fall OST (Westerville)
Horizon Science Academy Columbus High School Events
Dec
10
Wed
Fall OST (Morse)
Horizon Science Academy Columbus High School Events
Dec
11
Thu
Alg1 OST (Morse)
Horizon Science Academy Columbus High School Events
Dec
22
Mon
No School - Winter Break
12/22/2025
–
12/26/2025
Horizon Science Academy Columbus High School Events
Dec
23
Tue
No School - Winter Break
12/22/2025
–
12/26/2025
Horizon Science Academy Columbus High School Events
Dec
24
Wed
No School - Winter Break
12/22/2025
–
12/26/2025
Horizon Science Academy Columbus High School Events
Dec
25
Thu
No School - Winter Break
12/22/2025
–
12/26/2025
Horizon Science Academy Columbus High School Events
Dec
26
Fri
No School - Winter Break
12/22/2025
–
12/26/2025
Horizon Science Academy Columbus High School Events
Dec
29
Mon
No School - Winter Break
12/29/2025
–
1/2/2026
Horizon Science Academy Columbus High School Events
Dec
30
Tue
No School - Winter Break
12/29/2025
–
1/2/2026
Horizon Science Academy Columbus High School Events
Dec
31
Wed
No School - Winter Break
12/29/2025
–
1/2/2026
Horizon Science Academy Columbus High School Events