Apparently bubbling and boiling over are the theme for our projects this week. On Sunday afternoon, I introduced Eleanor to post-its and we flagged some activities in this science book that she thought would be fun.
On Monday, I had both kids home from school, and we got our bubble on.
- 1 glass bottle
- 1 cork (ya know, if you haaappppennn to finish off some wine the night before)
- 2 drinking straws with the bendy necks
- 1 drinking glass
- food coloring
- baking soda
- white vinegar
*In the directions, they say all easy breezy to ‘poke a hole in your cork with a skewer and slide the straw in’… um, my skewers couldn’t get through the cork and they certainly weren’t wide enough to fit a straw… so the drill was a BIG help.
Drill through your cork, then you can stick a straw in one end.
Stick the 2nd straw onto the end of the first one so that it will bend up out of the cork and down into your drinking glass. Just look at the picture… makes MUCH more sense.
Fill your drinking glass with water and add a few drops of food coloring. Here’s where the trial and error comes in… we had a couple of bubble overs before we got the hang of it. The gist? Add some baking soda to your bottle (maybe 1/2 tbsp), and then pour in a cup or so of the white vinegar. When the two substances meet… they react and you can relive your 7th grade science class glory.
You want to QUICKLY push the cork down onto your glass bottle before the bubbles reach the lid. Once the cork is plugging the top, the bubbles from the reaction will travel through the straw and into the water in your drinking glass.
Eleanor and Oliver loved it and we ended up rinsing out the bottle and doing this many, many different times. Thank goodness for the gallon of white vinegar I happened to have down in the basement.
Here’s a video so you can see what fun you’re in for.
You’ll be seeing a few more science-y experiments in the coming weeks since our library book has been a BIG hit!
Don't miss a post! Sign up for email or RSS updates!