Create an account
the use of tools or glassware can easily puncture or slice skin such as razor blades, pins, scalpels, pointed tools, dissecting probes, or borken glass
this can cause possible danger to respiratory tract like ammonia, acetone, nail polish remover, heated sulfur, moth balls
this can cause possible danger from an electrical shock or burn caused by improper grounding, liquid spills, short circuits, or exposed wires
substances like pollen, moth balls, steel wool, fiber glass, or potassium permanganate can iritate the skin or mucous membranes of the respiratory tract
bleaches such as hydrogen peroxide, or acids such as sulfuric acid, hydrochloric acids; or bases such as ammonia or sodium hydroxide can react with and destroy tissue and other materials
substances such as mercury, iodine, poinsettia plant parts, and many metal compounds may be poisonous if touched, inhaled, or swallowed (ahem.... Itera)
proper eye protection should be worn at all times by anyone performing or observing science activities
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together