Question

1. in the left - hand column below are the safety symbols used in the laboratory lessons. in the right - hand column are the messages of these symbols. in the blank before each symbol, write the letter of the message for that symbol.

safety symbol\tsafety symbol message
____ 1.\t a. wear a laboratory apron to protect clothing.
____ 2.\t b. be careful when using bunsen burners or hot plates.
____ 3.\t c. make sure gas outlets are turned off when burners are not in use.
____ 4.\t d. be careful when handling plants.
____ 5.\t e. be careful near bodies of water.
____ 6.\t f. when studying live animals, protect them and yourself.
____ 7.\t g. wear safety goggles to protect your eyes.
____ 8.\t h. do not ingest substances used in an investigation.
____ 9.\t i. be careful; there may be a danger of cuts.
____ 10.\t j. be careful when handling electrical equipment.

Explanation:

Match each safety symbol with its corresponding message based on common - sense associations of the symbol's imagery with the safety instruction. For example, a symbol of goggles corresponds to wearing safety goggles to protect eyes.

Answer:

1. a
2. b
3. c
4. d
5. f
6. g
7. h
8. i
9. j
10. e