It's Spring Break
from school here this week and so the grandkids are here for babysitting
servicesJ As
usual, they both wanted to do "some science." I've posted about some science experiments
we've tried here and here and here.
Today we tried
ELEPHANT TOOTHPASTE. We didn't have the right type of hydrogen
peroxide…I only had the drugstore variety but for a really big effect you need
20% which can be purchased at a beauty supply store. However, the experiment still worked on a
smaller scale and both grands were happy with it as you can see….
Here is the
"recipe":
16 oz. empty plastic
soda bottle (narrow necks like Coca-Cola are best)
½ cup 20-volume
hydrogen peroxide
a squirt of DAWN
dish detergent
3-4 drops of food
coloring
1 tsp. dry yeast
dissolved in approximately 2 TBSP. very warm water
a funnel
a large pan with
2-inch sides
*safety glasses and
lab smock are recommended (but we didn't have these; used aprons instead and
there were no problems for us)
Directions:
*Stand the bottle in
the center of the pan. Place funnel in
bottle opening.
*Measure the
peroxide and add 3 to 4 drops of food coloring; pour this into the bottle.
*Squirt in just a
little DAWN.
*Dissolve the yeast
in warm water. Pour into bottle and
quickly remove funnel. (The weaker
peroxide does not react as fast so give it a minute.)
How does it
work? The addition of the yeast acts as
a catalyst which makes the peroxide molecules release oxygen atoms…or something
like that!
This is a safe
solution (using the drugstore brand) so the kids can "play" in it
with their hands but certainly caution them not to taste it! As always, my two wanted to "do
more" so we made different colors and swished them all together. All in all, it was another fun science
adventure. My hope is that I am
encouraging them both to be interested in all the wonders of science and that
they will always want to know more.
And then….we had
another fun thing happen today….
This is our backyard
pond. We counted 8 babies and 4
adults. They've been eating our grass
all day. Hope they leave some for my
yard!
Isn't Spring a grand
time of year?
8 comments:
You're the best baby sitter ever!! Daddy is not going to like those geese for very long!
Girl, I bet they are loving visiting with you:) Enjoy the week, I know they will! HUGS!
What a fun idea and thanks for the recipe. I would love a backyard pond but not the geese...they are fun to look at but I think they are messy. I do hope you have a fun Spring break! Your Grandkiddos are cute and they look like they're having a great time.
Aren't grandkids fun? My grandparents never did things like that with me! Have fun with them!
How cool is that Cheri! I bet they think your the coolest Grandma around!
Love the geese and pond pic too, my parents used to have geese and they liked to chase us kids around the yard.
Needless to say, I wasn't a big fan of them!
Hugs,
Cindy
They looked like they were having a great time! YOu are such a good Grandma. Seemed I was always working when my little grands were small..and they grow fast! I do have some wonderful memories though..
The geese are wonderful..tiny babies! Awwww...
You're an awesome grandma. Daughter wants us to keep 2 grandsons (7 & 6) for a week or two this summer. I just don't think I have the energy to do it. (or the patience)
Love that you're having fun with them and they're learning something at the same time.
Oh the memories you are making! So much fun!
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