Monday, January 24, 2011

Science Sunday

Jan19_CrayonsI have stumbled upon “Start to Finish” series of books while looking for something on Amazon. We already had a batch of broken crayons that I was collecting for the “melting experiment”, so I thought that From Wax to Crayon book will be a good companion for this activity. First I asked Anna to predict what will happen if we put crayons in the oven. She predicted that they will burn, we will have to call the fire department and papa Jan19_Crayons2 will not be happy. Then I had her peel and break the crayons into pieces – her favorite part of experiment. Unfortunately, I really messed up on the setup – I didn’t think that crayons will liquefy so completely and so quickly. Putting them into the cookie cutters was not a good idea. We ended up with a big colorful puddle that spread all over foil and eventually cooled into thin and fragile crayon From Wax to Crayonstrips. Still, Anna was thrilled with this experiment and happy to try her new “crayon strips”. We will definitely repeat this experiment using molds. As for the book, it was somewhat disappointing. Quality of the photos could have been better, and sometimes the text didn’t quite match the picture. Still, Anna studied it with great interest and added “crayon making” to her list of future careers. She said that she might invent a new crayon and then she will send me the box. So nice of her :)

I am linking this post to Science Sunday at Adventures in Mommydom.

13 comments:

Debbie said...

I couldn't help but chuckle about the little mistake you made, yet, isn't it nice that our children even enjoy these experiments with mistakes and all. I plan on doing something like this but only I would like to wait until summer and let Selena melt some crayons in the sun.

Ticia said...

At least she was happy with them.

I've heard if you wrap the bottom of the cookie cutter with foil that helps contain the wax.

An Almost Unschooling Mom said...

We've had some luck doing like Ticia suggests, but one or two will still spill out, you need really even, flat cookie cutters. Molds are best, just be sure they are oven safe, if you're melting the crayons in the oven, and don't plan on using them for anything else, afterwards - you never quite get all the wax off the pan :) Oh, and it takes a very deep layer of crayon bits to make a decent thickness of new crayon.

I love Anna's prediction of what would happen with the crayons in the oven!

MaryAnne said...

Good to know the cookie cutter method doesn't really work. I'm curious - how hot did you heat the oven to?

I love Anna's prediction of what would happen when you put the crayons in the oven =)

Valerie @ Frugal Family Fun Blog said...

She's so clever to want to invent a new type of crayon and send you a box! So cute!!

My kiddos had lots of fun melting down crayons too. I was surprised what a big hit it was here. :-)

Kim said...

Oh, she makes me laugh. I'm glad you didn't have the predicted fire! I can't wait to see the new crayon she invents!

Christy said...

I love Anna's prediction. When we melted crayons, I was surprised by how many crayons we needed to make decent sized crayon shapes.

Elise said...

I had a chuckle that Anna told you she would send you the box for her crayon invention. So sweet.

We have never melted crayons and it is interesting to learn more about this. What a great idea to have Anna predict what might happen and thankfully her prediction did not become a reality.

littlewondersdays said...

Fun! I like that Anna thought about what might happen. Too bad about the book. You might check you tube for videos on crayon making. Little J watched one on legos and another on ice cream cones and enjoyed them.

Mom and Kiddo said...

The start of a great science career begins with trial and error, right?

Sparklee said...

Sounds like a fun experiment! We'll have to look for that book series at our library.

When my kids were little, we used to make "rainbow cookies." We took all the broken bits of crayon and melted them in an old muffin tin. The kids liked coloring with the little multi-colored discs, and it made me feel better that we weren't wasting the crayons!

Our Homeschool Fun said...

I've never done crayons in the oven, we just made them once in the sunshine and I used plastic cups for the molds. I bet you could do this too where you live in the summer!

The girl who painted trees said...

These books sound like a good way to explain how things start and finish. Great extension activity.