Daniel is doing Apologia’s Exploring Creation with General Science 2nd Edition. Here is his stab at Experiment 7.1 (page 160) “Making a Fossil Cast.”
First he read the instructions – that may seem obvious, but he is twelve. Little brother, David age 7, has decided he wants to join in and participate. We gathered up all the supplies. Oh, and just ignore that stuff on the left side of the table. That’s our other project – history – Charlemagne’s Crown in the making. The paint is drying. More on that in an upcoming post.
Making the mold! We used Sculpey clay, but I don’t recommend this if you are buying supplies. Its on the pricey side. The book says Play-Doh will work. We had Sculpey left over from another project, so that’s what we used. Notice – little brother looking a little less enthusiastic. This attention span is typical for him – don’t be alarmed!
Here’s the mold of his sea shell – which we actually got from the Gulf Coast last winter. Two different science adventures coming together! He covered the mold with petroleum jelly.
Measuring, weighing, and mixing the plaster! Here’s the MATH part! They (science & math) go together – just get used to it. We halved the plaster recipe on the container because we didn’t need a whole POUND worth! But we should have cut it to one forth. We would have still had plenty and the math would have been even more fun!
Not pictured – little brother, who has apparently moved on.
WARNING!! HAZARDS!! At least that’s what we read on the plaster container. Hence, the goggles, mask, and gloves were required. He’s very serious about warnings! It might be overkill, but its his experiment – just go with it.
Once it is mixed well, pour it into your mold. We have the mold in a plastic or maybe its Styrofoam plate. The books says paper, which we didn’t have. This plate worked. I think it just has to be throw away.
Let it sit and sit and sit. Okay, it really didn’t take that long unless you are 12 and 7. They went out to play and when they came back…
He broke off the excess, and pulled them apart. Cast made!
He’s one proud scientist!!
Now step 9: Clean up your mess!! Whatever you do, don’t skip this step!!
They spent the next several hours making more molds. Yes, “they” – little brother did come back for the big reveal! Perhaps tomorrow we’ll pour a cast of the nose mold he’s made. But for today – we’re done!!