Science
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- Finally class, some things you should know before the test is that Red Blood Cells only live about 120 days and if you have a hard time picturing them they look like flattened basketballs.
- Hello class today we will be talking about Red Blood Cells. Red Blood Cells are made mostly of hemoglobin.
- Red Blood Cells are the most abundant cell in your blood but not the biggest.
- Hemoglobin picks up oxygen from the lungs and brings it all around the body.
- Good morning today we will be contoning the lesson from yesterday except now we will be talking about white blood cells.
- I hope today's lesson helped you prepare for the test.
- White blood cells can do different things, some can alert the body about invaders. Some produce chemicals to fight off invaders and some surround and kill organisms.
- White blood cells are bigger than the Red blood cells but they are less White blood cells. White blood cells are also known as the "disease fighters."
- I hope you all do very well on the test and I give you the best of luck.
- Today for class we will wrap up our lesson about Blood! I will be talking about Plasma. Plasma carries nutrients, hormones, and proteins throughout the body.
- Plasma is a yellowish liquid that is 90% water. Plasma also carries away cell waste. Hormones carry messages throughout the body, telling it what to do and when.
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