Skip to main content

Science at home

We had a fun "experiment" yesterday. We took a 2 liter bottle of diet Coke and some Mentos, put 4 Mentos at the same time into the bottle, and shot a huge jet of soda into the air about 8 feet high! It was quite exciting, although I think the warnings that you might want to use eye protection were a bit overblown.

I suppose that it was an experiment only in the loosest sense of the term, but Michael forsees lots of fun in the future: using other types of soda, other methods for adding the mentos to the soda, and so on. It did get us out of the house for a while, and had Eleanor and Amanda dropping mentos into the used soda bottle and watching to see what happened---so cute!

Comments

C. L. Hanson said…
What fun!!!

Did you close the bottle and shake it before it shot, or did it shoot immediately as you added the mentos?

Our most recent food-science experiment was to put M&M's in water and watch the M&M's turn white as the color dissolved into the water. A tad less exciting, but the kids loved it! :D
mathmom said…
Hey c.l.! You get a stack of about 4 mentos ready, drop them all in at the same time, and stand back! Don't shake the bottle, just leave it open.

I think the main reason you use diet soda is that it doesn't attract as many ants...

Watching M&Ms sounds like a good activity for keeping kids (semi) quiet. Sometime I'll post about the other projects we've done (eggshells in diet coke, rock candy, making paper...).

Go ahead and add me to your blogroll, the next time you're editing. I've been hesitating because I wasn't sure I actually wanted real people reading it, but several people have told me that my blog is at least a little entertaining, so I guess I'm ready =).

Popular posts from this blog

My hero, Helen Parr

Otherwise known as Elastigirl , a.k.a Mrs. Incredible. She is a stay at home mom ( SAHM ), she clearly feels that what she is doing is important and is willing to give up a lot to do it (remember her comment in the intro: "I'm at the top of my game! Leave saving the world to the guys? I don't think so.") But she is finding fulfillment in leading her family from day to day, in doing a hard job well. She also knows that she is very talented, and that knowledge helps her see beyond the repetitive drudgery of staying home. My favorite scene is from the deleted introduction, where she talks with a "career woman" who is of the opinion that staying home is fine for people who can't do anything else. She responds that taking care of her kid is at least as hard as saving the world, and is valuable contribution to society. The point for me is that someone has to do the job that I'm doing, and it's not something that you could pay someone to do. I see...

Kindergarten Fashions

I was informed the other day that Eleanor wants to get a new thermos. She lost the o-ring from her purple Tinkerbell thermos, and I have so far resisted buying another one for her, on the theory that you shouldn't just replace things that are broken since it doesn't encourage being careful with one's things. I have been sending her with the sippee cups that she has been using since she was a year old, which she has resisted giving up to the point of becoming partly dehydrated when I don't let her use them at home. Here's how the conversation went. Eleanor: Anna and Jane said today at lunch, " Kindergartners don't drink from sippee cups!" Me: That's very interesting. Eleanor: They are supposed to drink from thermoses. Me: Eleanor, would you like a new thermos? Eleanor: Yes! Get the purple one, please. If there is a crayon one, that's the one I want.... Who knew that peer pressure started in kindergarten? The sippee cups are perfectly f...

Girl toys

A friend just had a post about her son's desire to have a pink bejewled play phone (she and the people who comment have great things to say: here it is so you can read it). Thinking about her post made me very glad that for girls 5 and under (which is all I have experienced lately) there is no toy that is off limits as far as I can tell. Amanda's favorite toys are trains (although she doesn't play with them the way some of her boy friends do. I think Chanson's kids would play well with her version of trains). Her favorite movie is Cars. Her favorite TV show is Bob the Builder. No one in her life (relatives, friends, teachers) tells her that she can't enjoy all of these things. On the other hand, she likes to play with all these things while she is dressed as a princess... In Eleanor's class, everyone's favorite thing to do is woodworking, both girls and boys. The only mathematicians she knows are women, so she expects to do well in math as well...