diagram above shows a hazard symbol. what is the meaning of this symbol?

• flammable

• irritant

• explosive

• poisonous

If you see above symbol, beware of materials that can

• release fume that can hurt eyes, nose and throat.

• cause harmful radiation.

• cause poisoning and death if swallowed

• easily expolde.

Tags

NGSS.MS-PS1-2

What you should do if someone inhaled toxic gas?

• Hold under running water

• Spit out immediately

• Move away from the gas for fresh air

• Flush eyes vigorously with water

Corrosive substances such as bleaches and drain cleaners can cause ......

• difficult of breathing

• serious burns and eye damage

• permanent amnesia

• massive headache

If a label says "CAUTION" it is...

• a little hazardous

• very hazardous

• not hazardous at all

When a material brings hazard, toxic and harms the environment, it is considered _________________.

• useful

• useless

• harmful

• harmless

Tags

NGSS.MS-PS1-3

You should never ______ chemicals in the lab. 

• taste

• touch

• smell

• all of the above

What safety symbol is this?

• biohazard

• radioactive

• toxic

• corrosive

Aerosol is categorized as ......

• Oxidising

• Flammable

• Explosive

• Toxic

What is the primary concern when handling hazardous materials in a laboratory setting?

• A) Cost of materials

• B) Potential for chemical reactions

• C) Safety of personnel

• D) Availability of equipment

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-6