Yesterday for homeschool, we made a volcano. Well, really we started the day before, because it had to dry. We made it using an old ear syringe (looks like a baby snot-sucker) and playdough. The Prince cut off the top of the syringe, and helped the girls mold the playdough around it. It was homemade playdough in case you're wondering, so no big expense there.
After it dried overnight (and in the sun for a while the next day) I had the girls sponge brown paint all over it so it looked a little more realistic.
And I know what you're thinking; the bright neon green twigs (known as 'trees') kinda detract from the whole "realistic" look we were going for.
When we were ready to set it up, I put a whole gob of baking soda (bicarb) into the bulb syringe and added food coloring. Then I took one of our smallest plastic cups and filled it half way with vinegar. When the girls were finished with their science lesson, we all gathered around for the eruption. The Prince did the honors of pouring the vinegar into the volcano, so the fingers in the pics you see belong to him.
It was really cool, if not more than a little stinky.
Playdough and vinegar smells do not play nicely together. I'm just sayin'.
So, when are you makin' yours?