Mr. Owoche Patrick
The Science Department comprises of Physics, Chemistry and Biology subject. Xaverian Secondary School boasts of a modern and well equipt laboratory. Biology and Chemistry are compulsury subjects for all students who sit their KCSE in the school.
The science department has seven teachers as listed below
1. Mr. Otieno Mathews - Physics
2. Mr. Owoche Patrick - Physics
3. Mrs. Okoth Nancy - Biology
4. Mr. Mutisia Vincent - Chemistry
5. Mr. Odhiambo Samuel- Chemistry
6. Mr. Odhiambo Sylvester - Biology
The school participates in science various science activities like Students Science Congress, Science Club etc.
There are two laboratories and one Lab technician
Mr. Nunda James