Getting started · Grade 9
First steps in the lab
ChemAI · Worksheet
NameClassDate
Aim
Learn the bench: add, heat, pour and measure.
Before you start: what do you predict will happen? Why?
What you do
| Step | What I observed | |
|---|---|---|
| 1 | Select tube 1 and add 10 mL of distilled water. | |
| 2 | Heat the tube until the water boils (speed ×5 helps). | |
| 3 | Stop heating, press “Pour” on tube 1 and then click the beaker. | |
| 4 | Turn on the pH meter: pure water has pH 7. |
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?