NSTA position statement - early childhood science

The National Science Teacher's Association's (NSTA) has recently released a position statement on early childhood science learning.

http://www.nsta.org/about/positions/earlychildhood.aspx

Fizzy colors and foaming dough

 On a rainy weekend day, we got out the baking soda and made "fizzy colors" by spraying colored vinegar at the baking soda. We put the vinegar in an old contact solution bottle.

 The colors fizz up nicely. We had blue and yellow and green dye so we tried all three.

 Then we made some foaming dough. We just mixed a little water into a lot of baking soda until it kind of got clumpy and moldable. Then we doused it with vinegar for some very satisfying foamy mess.

And then we mushed and mashed it all together and pretended to make, serve, and taste "ice cream."