Everything you need to run the hands-on investigations in the Apple Varieties unit with one class of about 30 students. Sized for a class of ~30 students are designed for 8-10 groups of students. 
 
What's included
 
- 100 pH strips (specific ones recommended for this lab)
- 1 Refractometer, shared by the whole class
- 3 Kid-friendly knives for cutting apples (optional)
- 1 Grater (optional)