Water and solutions · Grade 9
Crystal garden
ChemAI · Worksheet
NameClassDate
Aim
Metal salt crystals grow into colourful “plants” in water glass.
⚠ Water glass is strongly alkaline: gloves and goggles.
Before you start: what do you predict will happen? Why?
What you do
| Step | What I observed | |
|---|---|---|
| 1 | Drop in three different crystals. | |
| 2 | Wait and watch them grow (speed ×20). |
Questions
- Write a word or symbol equation for one reaction you observed.
- Explain your most important observation using particles, ions or energy.
- Was your prediction right? What would you change to get a more reliable result?