Archive for the ‘project’ Category
Science Fair
It has been rather whirlwind the last few days because the older three kids were putting together science project displays for their science fair. This entailed some help from Mom on the computer helping with formatting and printing of summary information for their display boards.
The eldest only decided to do a project three days before the fair. So, while her display was impressive, it was done in 48 hours. Here are your summaries:
Child #1 decided to see which mixture of sugar (half brown/half white, all white, or all brown) makes the “best” chocolate chip cookies as defined by her ideal rating of five characteristics (color, crunchiness, feeling in your mouth/teeth, chocolateness, and sweetness). She thought the half-brown, half-white would be “the best.” (She forgot to ask people to rate which one they liked best on her survey, so she had to modify her hypothesis a bit.) The all-white sugar cookie was the one that was closest to four of her five characteristics, so her hypothesis was proven wrong.
Child #2 decided to just take what she has been doing in science class with her. So, Mom transcribed her science notebook (badly spelled) notes into legible summaries to paste on her display board. She brought her four petri dishes with bacteria (which turned out to be a huge No-No) and her science notebook. The toilet lid was the nastiest looking petri dish. The one from her hand sample turned out to not have a whole lot of bacteria growing on it.
Child #3 brought her results from putting two Christmas gifts into water to see how much they would grow. She measured them (almost) daily for over two weeks while they grew & then shrunk (once taken out of the water). She had two graphs (one for each water toy). I found it interesting that out the three claims on the package, two of them were proven wrong by her data. (She didn’t notice this, by the way. She only noticed that her clam didn’t grow as much as her little brother’s alligator.) Now, it is over. I’m tired. The kids are snacking on leftover cookies and I’m going to go take a nap while they watch a movie.
Snow Days
Within the last few weeks, we’ve had several days of ice & snow that have caused the local schools to shut down. In fact, there was one week when we had mail delivery only three days out of six.
We continued to have school here on all those days. We had to reschedule a field trip because the place we were planning on going was closed due to the weather. So, we did a complete day of school that day, too.
We’re doing half-days this week and next (not including Christmas Eve, Christmas, and New Years). Math is every other day. Spelling is every day, although a shorter lesson each day. Science is every day (since we need to get through more lessons in that than any other subject).
Speaking of Science, we’ve had some fun experiments lately in our God’s Design for Chemistry book. We made whipped cream and butter one day when we were studying milk. We dissolved LifeSavers (TM) yesterday (cold water vs. room temperature water vs. hot water, crushed vs. whole, and still/moving tongue around in our mouths) as part of our lesson on ‘solutions.’ We made mayonnaise today as part of our lesson on ‘suspensions.’
The two kids took a quiz on Monday on mixtures, elements, and compounds. After they tried it by themselves, we used it as a review activity instead of a ‘grading opportunity.’ So they both got all the questions correct after going over everything three times.
The kids have gotten plenty of opportunity to go outside to play in the snow. They climb snowdrifts, throw snowballs, slide down various hills, play with the neighbor kids (who are out of school either on a snow day or for Christmas break), and get themselves cold & wet on a regular basis.
I found some snow pants for the older two at a local resale shop and had some just the right size for Child #3 already. Only Child #4 lacks them although he tends to stay out just as long no matter how cold & wet he is. The only time he comes to complain is if he lost a glove. It appears to be his Achilles ‘hand’ (so to speak).
“Why did the Sun Explode?”
We started Apologia’s Astronomy book this week and made it through the first chapter, complete with a planet model using balloons as the first project. To add to the fun, we used a later chapter’s guide to how far away to space the “planet” balloons from the sun. (Using this extremely scaled down guide, the planets would be much, much larger than they really are compared to the distance they are from the sun. But all models have their weaknesses.)
[Updated with photo of the Sun and first four planets. The first planet, Mercury, can't be seen in this view because of the blinds.]
Anyway, I had purchased some really, really big balloons so that I could make the “Sun” very large. I blew that yellow balloon up as far as I could while still being able to tie it off. I was in the process of hanging up Uranus when there was a large explosion that nearly made me fall off the couch. (I was setting a very bad example by standing on the top of the couch to hang the planets.) Child #2 turned to me with really large eyes and asked, “Mommy, why did the sun explode?”
Sure enough, the yellow balloon had popped with no children within five feet of it. I selected another one and blew it up – but not nearly as big as the last time. The children all implored me not to make this sun explode as well.
All the children were amazed at how far away the “planets” got from the sun. When we were hanging “Pluto” up in the hallway, a long distance from our “sun,” Child #2 again turned to me with big eyes.
“Mommy, we have to move the Sun. Pluto is COLD!”
(And yes, we are aware of the fact that Pluto is no longer considered a planet. We just choose to continue to include it in our study of the planets. We will explain the discussion surrounding it when we get to that chapter.)
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