Free KCSE Chemistry & Physics Notes

Written by a South Eastern Kenya University Teacher Trainee

I'm Lewis, 4th year BEd Science at SEKU. I wrote these notes while studying to taking care of my siblings. Moles, Titration, Organic Chemistry — all free. No paywalls. No sign-up required. Just a future teacher helping students pass.

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Physics Notes

Free KCSE Physics notes — Mechanics, Waves, Electricity, and more.

Chemistry Notes

Moles, Titration, Organic Chemistry — written by a teacher trainee.

Simulations

Interactive science experiments — Titration pH, Waves, Circuits.

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Daily Science Challenge

CHEMISTRY HARD

Explain why chlorine is a powerful oxidizing agent, using its electron configuration and position in periodic table.

A
Chlorine (Group VII, 2,8,7) has high electronegativity, gains one electron easily to form Cl⁻, making it a strong oxidizer
B
Chlorine is a metal
C
Chlorine loses electrons easily
D
Chlorine is a noble gas

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