We put bread soda into a small bottle. (We also added red food colouring for effect, and wash up liquid for bubbles). Nothing happened yet.
Next Markian poured in vinegar and the volcano exploded, sending out bubbly red lava. This is because bread soda and vinegar react together chemically, giving off lots of bubbles (of carbon dioxide). 
We used the gas made to blow up a balloon. 
This time we started with vinegar in the bottle and the bread soda in the balloon. When we held the balloon upright, the bread soda in the balloon fell into the vinegar. The gas that was made blew up the balloon.
We used the gas made to blow up a balloon. This time we started with vinegar in the bottle and the bread soda in the balloon. When we held the balloon upright, the bread soda in the balloon fell into the vinegar. The gas that was made blew up the balloon.
No comments:
Post a Comment