:Objective To study the activity of the enzyme catalase and how it breaks down hydrogen peroxide, and to compare the activity between different enzyme sources (liver, potato, other plants):Tools Animal liver or plant alternative such as potato _ Mortar and Pestle _ Water _ Sand _ Test tubes _ Filter......

Keywords: Vitamin C – Ascorbic acid – Detection – Iodine solutions

Objective: To detect the presence of proteins in a sample using the Biuret reagentMaterials: Test tubes _ Test tube rack _ Egg white _ Glucose solution _ Starch solution _ Distilled water _ Biuret reagent _ DropperSteps: Prepare 4 test tubes and place in each one: egg white, glucose, starch, or dist......

Chewing gum analysisKeywords (English): chewing gum – composition – analysis – sugars

Detection of monosaccharides and disaccharides

Keywords: Polysaccharides – Starches – Iodine – Food

Unit One: Chemical Reactions. Lesson two: the speed of chemical reactions.Keywords (English): enzymes – reaction rate – catalysts – biochemistry

Keywords: Blood groups – A B O – Clotting – Antibodies

Keywords: Amylase enzyme – Temperature – Digestion – Starch – Enzyme activity

Keywords: pH – Enzyme activity – Reaction – Digestion

the goal:Revealing how photosynthesis and cellular respiration work together in an ecosystem.Materials and tools:Bromothymol blue (BTB) solution - Glass beaker - Test tubes - Aluminum foil - Aquatic plant.Steps:1- Add a quantity of bromothymol blue (BTB) solution to a glass beaker using a pipette.2-......

Keywords: Anaerobic respiration – Alcoholic fermentation – Carbon dioxide – Yeast – Sugar

Keywords: Exhalation – Carbon dioxide – Limewater – Respiration