A Demonstration Manual for Use in the Waldorf School Seventh Grade Chemistry Main Lesson

Mikko Bojarsky

Spiral bound


This is the most practical, hands-on, sure-to-convey-the-lesson chemistry curriculum guide published within the Waldorf movement to date. Mikko Bojarsky isn’t just another science master teacher — he is also a master at teaching teachers what they need to know in order to teach their students effectively. The straightforward clarity of his presentation takes you right into a classroom filled with lively (and not always attentive) students and gives you everything you need to make the lesson come alive in their eyes (and grab the attention of those not always committed to study).

Although written for class teachers in a school setting, these lessons can be just as effective (and just as do-able) in a homeschool setting.

Bojarsky covers:

  • Introduction
  • Chemistry in the Seventh Grade
  • Presenting Demonstrations and Working with Chemicals includes safety, rehearsing, dangerous experiments, equipment, handling acids and bases, disclaimer, concentration of solutions, abbreviations
  • Combustion Includes suggestion for opening poems, burning materials, igniting a fire with magnesium firestarter, making a bonfire, kindling temperature, burning powdered metals, colored flames, water and alcohol, dramatic combustion of alcohol, fire needs air, exploding paint can, smoke bomb, exploding mixtures of hydrogen and oxygen
  • The Candle Includes: how it burns and why the wax doesn’t melt the candle rim and run over the sides; experiments with the flame; igniting the vapors; a jumping flame; making sooty flame; split candle flame; charcoal; sulfur and more
  • Water Includes the water cycle, water as solvent; water as catalyst; purifying salt; expanding as it freezes; evaporation and condensation; distillation
  • Salts and Crystal Formation Includes examining salts, crystals from table salt; precipitation of potassium sulfate crystals; epsom salts; silicate fairy garden; crystallization of sodium acetate; growing fluffy white crystals on charcoal; growing crystals from alum
  • Acids and Bases Includes tasting acids and bases; their properties; cabbage juice indicator; observing color changes; smoke is acidic; ash is basic; making bases directly
  • The Lime Cycle Includes preparing carbon dioxide and carbonic acid; calcium carbonate; the lime kiln; adding carbon dioxide to limewater; adding hydrochloric acid to marble; soaking an egg in vinegar; contrasting mineral water and limewater as acid and base; making insoluable bases
  • Making Salts Includes preparation of hydrochloric acid; sodium hydroxide; making sodium chloride; their reactions; neutralizing vinegar with milk of magnesia; making calcium chloride and ammonium chloride; splitting another salt into an acid and base
  • The Metals
  • Appendix 1: Where to obtain materials
  1. I have used this book for both of my daughters and found it easy to follow the experiments