Observe and understand changes in states of matter by heating and cooling water. IGCSE and KS3 prescribed practical with method, safety notes and discussion.
Tag: practical
What is Osmosis?
What is osmosis? Learn about water potential, partially permeable membranes and how osmosis works in living cells. IGCSE and IB biology revision guide.
Revision tips – how to ace your exams!
Practical revision tips and strategies to ace your IB, IGCSE and GCSE science exams. Covers planning, active recall, spaced repetition and exam technique.
The Winkler Method – Biological Oxygen Demand BOD
Winkler method: measure dissolved oxygen in water samples and calculate biological oxygen demand (BOD). IB and A-level redox titration practical with full method.
Group 1 Alkali Metals Reacting with Water: Demonstration
Demonstrate Group 1 alkali metal reactions with water using lithium, sodium and potassium. IGCSE and GCSE chemistry practical with observations and safety notes.
Empirical Formula of Magnesium Oxide: Classic Practical
Calculate the empirical formula of magnesium oxide from experimental mass data. Classic IB, IGCSE and GCSE chemistry practical with worked molar ratio calculations.