We had our first winter snowfall here in New York, so I thought it was a good time to talk about, and play with, both real snow and a popular polymer substitute,
'Insta-snow'.
|
Insta-snow powder | | |
|
|
Each child got a cup of real snow and we talked about how it looked and felt - no tasting allowed! "Cold", "wet", "white", "clumps", "melts", were among the observations made.
Adding red food color to the snow showed interesting effects - how it spread to all the particles and made colored water.
|
pink snowballs! |
We then added WARM water to the insta-snow powder, which felt gritty at first, then EXPLODED as each particle absorbed 300x its own weight of water. This was a huge "Oooh!" moment, and plunging a hand into the 'snow' was a mindblower because it was of course warm, as well as feeling soft and slippery.
Caution: spilling this on the floor makes for a slippery surface - watch out! Now we could add red food color to our insta-snow and compare the effects to the real stuff. You have to squeeze to make the color spread here, otherwise it remains inside the polymer particle.
|
comparing real snow with insta-snow |
|
squeezing the color out of the polymer |
|
many shades of red |
Hours of fun followed as the children made fantastical sculptures, mixing the two different snows and generally having a creative blast!
|
good hands-on fun! |
No comments:
Post a Comment