This is the 6th unit in the general science course. It covers Chemistry & and Environment Topics include: Water chemistry Treatment of sewage Residues A Secchi disk experiment Nutrient addition The atmosphere (primary and secondary pollutants) Environmental chemistry Pesticides There is also an assignment on Pesticides included. At the end there are some review questions and answers included. We hope you enjoy this resource. Kind Regards ENTER - ONE

This is the 5th unit in the general science course. It covers basic topics in chemistry. The topics included are: Quantity in chemistry (Molar mass and mole) Chemical bonding and structure Chemistry in solutions Physical chemistry Organic chemistry There is an assignment included based on organic chemistry and questions and answers at the end for review. Chemistry is one of the most fascinating subjects to learn. Enjoy learning from this resource. Kind Regards ENTER - ONE

This resource shows the procedures to follow, to ensure a safe laboratory and what to do when you encounter challenges and health risks. These rules should be taught and enforced in the laboratory to ensure a safe and comfortable working environment. This resource can be sent to students before engaging in laboratory work. Kind Regards ENTER - ONE