TED Ed - The chemistry of cookies
This online resource looks at non-reversible changes to matter.
The resource is a TED Ed video (4:29) that examines the many reactions that occur in the simple act of making cookies.
The video covers topics such as emulsions, caramelisation, how egg protein changes when cooked, and even salmonella.
Whilst watching, students could identify the different physical and chemical reactions that occur when baking cookies.
As the word 'cookies' suggests, this video is from the US with the temperatures in degrees Fahrenheit.
- Year 8 > Science Understanding > Chemical Sciences > Chemical change involves substances reacting to form new substances > ACSSU225