Classifying materials · Grade 9
Does it mix? Does it dissolve?
ChemAI · Worksheet
NameClassDate
Aim
Sort substances by how they behave in water.
Before you start: what do you predict will happen? Why?
What you do
| Step | What I observed | |
|---|---|---|
| 1 | Add hexane to tube 1. | |
| 2 | Add ethanol to tube 2. | |
| 3 | Add salt crystals to tube 3. | |
| 4 | Add marble chips to tube 4. Which substances are soluble or miscible? |
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?