Thursday, October 18, 2012

Eye Dissection

Tonight we did our eye dissection. Gotta love science and a child who loves science. Sarah started by watching a cow eye dissection on you tube. Then she gathered her supplies. We started by examining the outside of the eye, finding the cornea, iris, and pupil.
She then cut away most of the fat and muscle. Then using a scalpel to make an incision into the cornea releasing the clear liquid called

aqueous humor. Sarah then made an incision through the sclera in the middle of the eye, cutting the eye in half. Removing the cornea and placing it down to cut it with the scalpel. The next step was to pull out the iris. In the center of the iris was hole which is the pupil. The back of the eye was filled with a clear jelly,(vitreous humor). Sarah remove the lens, which she placed down on a piece of paper with words on it to see the lens magnify the words. You could the see the thin fleshy film on the back half of the eyeball which was the retina. The retina is attached at just one spot, the optic nerve. Under the retina, the back of the eye is covered with shiny, blue-green stuff, called tapetum, which reflects light from the back of the eye. We both learned a lot from this.

Differenc in dance and gymnastics

Sarah is working hard to change a dance step that she spent years perfecting. The coupe in dance and gymnastics is quite different.

Motorcycle Baby

Sarah has many fears. One has been the motorcycle. Tonight she decided to ride it. To all of our surprise, she love it. God is truly good in helping her heal and face fears that she may overcome and expand her horizons.

10-18-12 State fair





Today we went back to the fair and took Spencer with us. We wanted to see Sarah's chickens. We had a great time. Sarah and Spencer rode a lot and Sarah rode some rides by herself.

Biology Experiment --Osmosis

Sarah a raw egg then  placed it in a cup with vinegar, letting it sit for 24 hours. When she took it out the shell had dissolved, which left the membrane under the shell exposed. That membrane is a semipermeable membrane, whick had allowed the egg to soak up the vinegar. She then rinsed the egg off and placed it in a cup filled with Karo syrup for 24 hours. Whe we exaamined the egg after 24 hours it was smaller and dimpled, since the vinegar moved out of the egg and into the syrup. We then placed the egg in a cup of distilled water for 24 hours, which allowed the water to move back into the egg again. 

Seems like a lot of work to try and understand a concept, but it works well for us. Sarah is a hands on learner and this works great for us. I love homeschooling and the fact that I get to travel this journey with her.

Pumpkin Carving with Brandon and Sydney




We went to Katie's today to have supper with them and let the kids carve pumpkins. That was quite a laugh. Jessica enjoyed it as much as the kids I think.

State Fair October 11, 2012

Today we went to the State Fair with Megan, Aaron and Katie. We got there at about 1pm and stayed until 11:30 pm. Sarah, Megan and Aaron rode rides util they cut out the lights. Sarah's favorite ride this year was Speed. Of course don't ask her what it looks like coming down, she covered her eyes. Ha. The smile on her face and the sound of her laughter was priceless. It was a great night.