Lab Materials
This is the prep for one section of 24 students.
Part 1: pH Chemistry
Students will do this part in table teams (groups of 4).
| Materials | Quantity | Notes |
|---|---|---|
| pH papers (1–14) | 1 set per table | Also used in Parts 2 and 3 |
| White plastic tray with wells (paint trays) | 1 per table | |
| Wax pencil | 1 per table | Also used for Part 2 |
| Forceps | 1 per table | |
| Solutions to Test | ||
| Distilled water | Very small amounts | In squeeze bottle |
| Bleach | Very small amounts | In beakers on the side water |
| Aspirin | Very small amounts | (with small mortar and pestle, so it can be crushed and added to water) |
| Lemon juice | Very small amounts | In beakers on the side water |
| Milk | Very small amounts | In beakers on the side water |
Part 2: Buffers
Students will do this part in table teams (groups of 4).
| Materials | Quantity | Notes |
|---|---|---|
| Baking Soda (NaHCO3) | 1 gram per table | (two large boxes total?) |
| Beaker (250 mL) | 2 per table | |
| 0.001 M HCl (hydrochloric acid) | 1 L per side of the room | |
| Balances | 4 | side counter |
| Scoops | 2 | for baking soda |
| weigh papers | with balances |
Part 3: Buffers in the Blood
Students will do this part in pairs.
| Materials | Quantity | Notes |
|---|---|---|
| Ehrlenmeyer flask (50 mL) | 4 per table | |
| Drinking straw | 2 per table | Put these at the front table so they are clean |
| Phenol red | 1 per table |
Part 4: Polar and Nonpolar Compounds
Students will do this part in table teams (groups of 4).
| Materials | Quantity | Notes |
|---|---|---|
| Test tubes | 2 per table | |
| Test tube rack | 1 per table | |
| Detergent | on side counter | Just a few drops per group are needed. |
| Beet juice | on side counter | Just a few drops per group are needed. |
| Chili oil | on side counter | Just a few drops per group are needed. |
| Oil | on side counter | About half a test tube per group |
| Plastic stir sticks | 4 per table |