Monday, September 26, 2016

Is Your Blood Type Compatible?

The youngest is learning about the human body this year. In the past, we've done a lot of experiments with the human body, but this one experiment was really fun learning about blood types.

Here is another activity we've done on blood: http://meanttoteach.blogspot.com/2014/04/blood.html
I'll eventually get a chance to group all of our human body activities because I have more on my blog.

There are 4 blood types: O, A, B, and AB. We discussed what a donor was, what a receiver was, and why it matters for doctors to know if the blood types are compatible when someone donates blood. We talked about antigens and how a patient could become very sick if their body rejects new blood.

This experiment was simple.

All you need is:
Two colors of food coloring (Red and Blue work best, but I only had yellow and blue. So that's what we did.)
Water
Dry Erase Marker

1. Fill each cup halfway with water.
2. With the dry erase marker, label each cup with one blood type.
3. In the cup labeled A, put in 2 drops of red coloring.
4. In the cup labeled B, put 2 drops of blue coloring.
5. In the cup labeled AB, put in 2 drops of blue and 2 drops of red coloring.
6. Stir the water to blend colors in.
7. The cup labeled O is left with clear water.

Continued steps to start experiment:
1. To determine if the blood types are compatible, choose one cup of water to be your donor blood type.
2. Look at what will happen if you were to pour that water into each of the other cups (the receivers).
3. If the water of the receiver cup changes color, then the blood types are not compatible. If the water doesn't change color, then that blood type can receive your donor blood.
4. We put a check mark if the receiver blood can accept the donor blood and an x if it couldn't.

You can find this experiment with the chart at learninandearnin.com.

My youngest thought this was so fun and she is type O blood. So she loved figuring out that her blood type is the universal donor (able to give to all other blood types).



How Much Salt Does it Take to Make an Egg Float?

The oldest is doing Oceanography this year. She had a reading on "Why is the Sea Salty?" from Wonderopolis. At the end of her reading we completed a lab on making an egg float.

 Of course, I made her do a write up on her lab for portfolio purposes. 
  • We've done a similar experiment in the past called Sink or Float. You can find that here

Thursday, September 15, 2016

The Ancients are Here Again

Well, they say when it comes to schooling that history and science will repeat every 3 or 4 years. We've done ancient history before and we are back at it again. Since the start of the school year, we've had plenty to do with Ancient Egypt and Mesopotamia.

With Ancient Egypt this time, we did a lapbook from Homeschool Share. We also took virtual tours of the Sphinx, Great Pyramids, and tombs. You can do that by going here. And of course, you can't forget to write your name in Hieroglyphics (cheat sheet). We also studied some Egyptian Art and tried to do our own sculptures. My youngest is pictured below with her pyramid of modeling clay.
 

In the past, we baked a cake and decorated it with Egyptian Pyramids and the Nile River. You can see my previous blog post on Ancient Egypt here.

We've also covered some of Ancient Mesopotamia. It was fascinating to see the kids learn about the Code of Hammurabi and then to compare and contrast some of those codes with our own laws that we have today. My oldest daughter and her dad sat and had a lot of discussion on what some of the punishments of today were, including what malpractice was. So I have an example of some of her work below.


Its always fun looking back at this area, because my husband was deployed to Iraq and knowing that was around the same area is always kind of cool because he's been there and he can tell us about it. Plus, he has pictures of him right in front of what is believed to be the Zigguarat there. So the kids like looking back on that. You can see my previous blog post of that here.