Other Chapters' Lyrics:

Earth Science 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 -:- Life Science 1 - 2 - 3 - 3b - 4 - 4b - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 -:- Physical Science 3

Other Chapters' Notes:

Earth Science 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 -:- Life Science 1 - 2 - 3 - 3b - 4 - 4b - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 -:- Physical Science 3

Back to the full science song list. -:- Download free mp3 of this song. -:- Composer's home page.

_______________________________________________________________________________________

Life Science Chapter 3b- Summary Notes

Little Things and Big Things

• Some things have only one cell while others have many. Once cell is too hard to see with our eyes.
• Everybody started out as one cell. Then it kept doubling and doubling into more cells. One cell became two, two became four, four became eight, eight became sixteen, until people become about 100 trillion cells.
• Tissues are groups of cells working together.
• An organ is when tissues start working together like in our heart, our lungs, our skin.
• Organs work together to form organ systems like the digestive system.
• An organism is something that can live on its own.
• Big organisms like us are called multicellular organisms which are made of lots of organ systems, and in turn lost of organs, and lots of tissues, and lots and lost of cells. And don’t forget, those cells are made of lots of smaller units too.