Categories: RattleBag and Rhubarb

Thicker than water

I was sorry to miss this event but Lynn sent me pictures.This was a lesson in viscosity. They started with water and added oil. They placed three separate dry ingredients into the water/oil, one at a time:  sugar, salt and baking soda. They counted the number of bubbles that rose up, observed their size and frequency and made comparisons. They compared each addition and then added more oil, made observations and made further comparisons.  It was like making a personal lava lamp. The water was quite viscous at the end.

Thank-you Harry and Jen Yan who came to class to guide this exploration.

By all accounts it was a blast. Maybe the 1-2 students will write about it in their class blog!. (More pictures on PDS Flicker.)

JosieHolford

Recent Posts

A Bonfire in the Dark

When I was in the emergency room last year having busted my elbow, a nurse…

2 weeks ago

Locked Out

Most of us have done it at some point or another - accidentally locked ourselves…

3 weeks ago

The #1970 Club: Germaine Greer and The Female Eunuch

Thanks to the #1970 Club, I've spent the spare moments of the past week immersed…

1 month ago

The Forgetful Mog

Thanks to the #1970 Club,  I have a new mog in my life and a…

1 month ago

The #1970 Club: Language and Learning

The #1970 Club is starting tomorrow (October 14th) and I'm prepared with some reading and…

1 month ago

How do they live with themselves?

How Do They Live with Themselves? This was the question Roger Rosenblatt asked in The…

1 month ago