Question

1. no shorts, skirts, or ____________________.
2. roll up ____________________.
3. long hair must be ____________________.
4. no dangling jewelry.
5. wear safety __________________, lab coat or __________________.
6. no books, __________________, or __________________ in the lab area.

1. don’t use chemicals that are not ____________________.
2. don’t ____________________ anything in the lab unless instructed to do so.
3. smell by ____________________.
4. no ____________________!
5. always add __________________—never add ________________! pour acid while __________________.
6. never return __________________ chemicals to the stock bottle. explain why? __________________
7. don’t touch your ____________________ while working in the lab.

Explanation:

These are lab safety rules, typical in science (especially Chemistry/Physics labs). Let's fill common answers:

1. No shorts, skirts, or sandals (footwear safety).
2. Roll up sleeves (prevent contact with chemicals).
3. Long hair MUST be tied back (prevent fire/chemical contact).
4. Wear safety goggles, lab coat or apron (eye/body protection).
5. No books, food, or drinks in lab (contamination risk).

Lower section (chemical safety):

1. Don’t use chemicals not approved/listed (safety protocol).
2. Don’t taste/consume anything (lab safety).
3. Smell by wafting (avoid inhaling fumes).
4. No horseplay/fooling around (prevent accidents).
5. Always add acid to water—never add water to acid! Pour acid while stirring (heat control).
6. Never return unused chemicals (contamination of stock). Reason: Unused chemicals may be contaminated, risking stock purity.
7. Don’t touch your face/eyes/mouth (prevent chemical exposure).

Answer:

1. sandals
2. sleeves
3. tied back
4. goggles; apron
5. food; drinks

Lower section (examples):

1. approved
2. taste
3. wafting
4. horseplay
5. acid to water; water to acid; stirring
6. unused; Unused chemicals may be contaminated, risking the purity of the stock bottle.
7. face (or eyes/mouth)