Learning By Accident: Tasting Chemicals


test tube 6188082_mA substitute science teacher was conducting a common introductory lab in the grade nine applied chemistry strand, identifying unknown chemicals (salt, baking soda, chalk, sodium nitrate, and sodium thiosulphate) in numbered containers using physical properties. Prior to the activity the teacher was very careful to go over all the safe ways to observe a chemical such as, don’t touch with your hands, don’t smell, and don’t taste She even commented that two of the chemicals were toxic.

Click here for the complete article.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s