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IT’S ALIVE!!! (or is it?). Add this title to your Table of Contents as page 16. Begin this on a left page. Copy the title. Copy the question below and write your answer. THINK: “What is a living thing (organism)?”. THINK – (you just did this). What is a living thing (organism)?.

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it s alive or is it
IT’S ALIVE!!! (or is it?)

Add this title to your Table of Contents as page 16.

Begin this on a left page.

Copy the title.

Copy the question below and write your answer.

THINK: “What is a living thing (organism)?”


THINK – (you just did this)

What is a living thing (organism)?

PAIR – discuss with a partner and make any changes here

SHARE – after class discussion make more changes


LIVING observations

NONLIVING observations


Read “That’s Life!”

(pp 6-7)

Go back and look at your description of a living thing (in your science log). Make any changes you feel necessary to give you a better definition now.


Conclusion: Was it alive? Use the class discussion, the reading, and your observations as evidence.


Notes – Characteristics of Living Things

  • Living Things Have Cells
    • All living things are composed of one or more cells.
    • A __________ is a membrane-covered structure that contains all of the materials necessary for life.
    • Some organisms are made up of only one cell and some are made up of trillions of cells. In an organism with many cells, different kinds of cells perform __________________ functions.
  • Living Things Sense and Respond to Change
    • A ________________ is anything that causes a reaction or change in an organism or any part of an organism.
    • Homeostasis is the maintenance of a ____________ internal environment.
    • Responding to External Change - Organisms must _____________ to change in the external environment in order to maintain their homeostasis.
  • Living Things Reproduce
    • Organisms make other organisms similar to themselves.
    • In ______________ reproduction, two parents produce offspring that will share characteristics of both parents.
    • In ______________ reproduction, a single parent produces offspring that are identical to the parent.
  • Living Things Have DNA
    • The cells of all living things contain the molecule deoxyribonucleic acid, or ____.
    • DNA controls the structure and function of cells.
    • The passing of traits through _________ is called heredity.
  • Living Things Use Energy
    • Organisms use _____________ to carry out the activities of life.
    • An organism’s _______________ is the total of all of the chemical activities that the organism performs.
  • Living Things Grow and Develop
    • All living things, whether they are made of one cell or many cells, ___________ during periods of their lives.
    • Living things may _____________ and _______________ as they grow.

Read “What’s in an Organism’s Name?”

(pages 8-11)

Pay close attention to how scientific names are developed.