SS2 Biology – Pollution

CONTENT     Definition of Pollution Air Pollution  Noise Pollution  Land Pollution  Water Pollution    POLLUTION   Definition: Pollution is defined as the release of toxic or harmful substances into the environment

Types of Agriculture: Subsistence and Commercial

Welcome to class! In today’s class, we will be talking about the types of agriculture: subsistence and commercial agriculture. Enjoy the class! Types of Agriculture: Subsistence and Commercial Agriculture  

SS1 Chemistry – Atomic Number, Mass Number, Isotopes, and Calculations

CONTENT   ATOMIC NUMBER AND MASS NUMBER ISOTOPES CALCULATIONS OF RELATIVE ATOMIC MASS   CONSTITUENTS OF AN ATOM Atoms are made up of sub-particles. Protons, electrons, and neutrons. Proton has