Science Friday

22 05 2010

When I was pregnant with BB, I was at a large rummage sale and came across a book called Chemistry for Every Kid.  Of course I bought it!  (Aren’t my kids lucky to have a former chemistry teacher for a mom?)  And in honor of my favorite NPR program that I never listen to (because really, the odds of me being in the car, where I listen to the radio, at 2pm on a Friday are nil) I decided that BB was old enough to try some science activities, so Fridays would be our science day.  I have to admit, I kind of decided this because I was cleaning out the fridge and the egg dyes were still there, including the cabbage juice.  Cabbage juice (from red cabbage) is an acid-base indicator, so when you put vinegar (acid) in it it turns pinkish and when you put baking soda (base), it turns dark purple.  And, of course, when you mix baking soda and vinegar, you get lots of foaming bubbles!  In this case it’s purple foam!

Purple fizz!

He’s too young for much explanation, I just figured it would be good practice scooping and pouring (I gave him a cup of vinegar to pour with too), and watching what happened.  I don’t think he noticed the colors much.  He had a great time mixing things though, and at this point, I suppose that’s what counts!

That was actually last week… this week it was so nice that we headed out to see a park we had never been to before, the Lock 32 park in Pittsford.  I forgot my camera, but if you have seen a boat lock before, you know it’s pretty neat.  We were lucky enough to see one boat come up, and another boat go down.  I don’t know how much he understood, but I explained to him that the lock lets boats go from the lower side of the canal to the higher side (and vice versa) by closing the doors and raising or lowering the water level.  It’s very cool!  I found some great pictures on another blog; if you haven’t seen a lock before it’s worth taking a look.

So that’s our science fun, I hope to keep it up!

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