California Science, Grade 5 by Dr. Jay K. Hackett

By Dr. Jay K. Hackett

Book Details:

  • Format: Hardcover
  • Publication Date: 3/30/2007
  • Pages: 529
  • Reading point: Age 10 and Up

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Extra info for California Science, Grade 5

Sample text

29 nucleus , p. 29 mitochondria , p. 29 vacuole , p. 29 cell wall , p. 31 chloroplast , p. 31 microscope , p. 32 Plants, animals, and all living things are made of cells. A cell (SEL) is the smallest unit of a living thing that can carry out the basic processes of life. Grass and mountain lions are made of cells. Your own body is made up of trillions of these tiny building blocks. ▼ This mountain lion and the grass are made of many cells. indd 26 12/22/05 11:18:56 AM The cells of different living things are similar in many ways.

29 nucleus , p. 29 mitochondria , p. 29 vacuole , p. 29 cell wall , p. 31 chloroplast , p. 31 microscope , p. 32 Plants, animals, and all living things are made of cells. A cell (SEL) is the smallest unit of a living thing that can carry out the basic processes of life. Grass and mountain lions are made of cells. Your own body is made up of trillions of these tiny building blocks. ▼ This mountain lion and the grass are made of many cells. indd 26 12/22/05 11:18:56 AM The cells of different living things are similar in many ways.

1940s—Electron microscopes magnify 40,000 times more than previous microscopes. 1860s–1890s— Scientists develop new ways of staining cells so they are easier to see and study under a microscope. ” 1982—Scientists build the scanning tunneling microscope that allows you to see individual blood cells. Reading Diagrams Quick Check In what year did Robert Hooke first see cork cells? Summarize What prevented people Clue: Look at the diagram for the picture of cork cells. Read the caption and look for the year.

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