Elementary school science laboratory instruments into how many kinds of how many categories

Divided into six categories, the categories are as follows:

1. measuring instruments ? : (1) Measuring cylinder ? (2) tray balance

2. Instruments for separating substances: funnel

3. Instruments that can be heated:

(1) test tube ? (2)Beaker ? (3)Ordinary flask ? (4) Evaporating dish (5) Crucible

4. Heating apparatus

(1) Alcohol lamp ? (2) Asbestos mesh

5. Instruments for storing and taking substances

(1) Reagent bottle ? (2)Dropping bottle (3)Glue-tipped burette (4)Medicine spoon (5)Collecting cylinder

6. Other instruments

(1)Iron stand

(2)Mortar and pestle