Lesson 1 | Characteristics of Life
Lesson 1 | Characteristics of Life
Student Labs and Activities
Launch Lab Content Vocabulary Lesson Outline MiniLab Content Practice A Content Practice B School to Home Key Concept Builders Enrichment Challenge
Page
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Classifying and Exploring Life
7
Name
Date
Class
Launch Lab
LESSON 1: 15 minutes
Is it alive?
Living organisms have specific characteristics. Is a rock a living organism? Is a dog? What characteristics describe something that is living?
Procedure
1. Read and complete a lab safety form.
2. Place three pieces of pasta in the bottom of a clear plastic cup.
3. Add carbonated water to the cup until it is 2/3 full.
4. Observe the contents of the cup for 5 minutes. Record your observations in the Data and Observations section below.
Data and Observations
Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Think About This
1. Think about living things. How do you know they are alive?
2. Which characteristics of life do you think you are observing in the cup?
3.
Key Concept Is the pasta alive? How do you know?
8
Classifying and Exploring Life
Name
Date
Class
Content Vocabulary
LESSON 1
Characteristics of Life
Directions: Unscramble each word. Then write the correct term next to its definition on the lines provided.
1. clel
2. samigron
3. rainullclue
4. steamhissoo
5. cruelmalltiul
6. made of one cell
7. the ability to maintain steady internal conditions when outside conditions change
8. the smallest unit of life
9. made of more than one cell
10. a thing that has all the characteristics of life
Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Classifying and Exploring Life
9
Name
Date
Class
Lesson Outline
LESSON 1
Characteristics of Life
A. Characteristics of Life
1. All
things are organized, grow and develop, reproduce,
respond, maintain certain internal conditions, and use energy.
2. Things that have all the characteristics of life are called
.
B. Organization
1. Whether an organism is made of only one
--the
smallest unit of life--or many cells, all living things have structures that have
specific functions.
2. Living things that are made of only one cell are called organisms.
3. Living things that are made of two or more cells are called
organisms.
4. Living things with more than one cell have a greater level of
because groups of cells function together.
C. Growth and Development
1. Living things grow by increasing number.
or increasing cell
2. The changes that occur in an organism during its lifetime are
called
.
D. Reproduction
1. more new organisms.
is the process by which one organism makes one or
2. Some organisms must have a(n) others can reproduce without one.
to reproduce, but
E. Responses to Stimuli
1. All living things can
to changes in the environment.
These changes are called external.
and can be internal or
2. Hunger and thirst are examples of
stimuli.
3. Some examples of
stimuli are light and temperature.
Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
10
Classifying and Exploring Life
Name
Date
Class
Lesson Outline continued
F. Homeostasis
1. An organism's ability to maintain steady internal conditions when outside
conditions change is called
. Maintaining these
conditions ensures that cells can
.
2. When your outside environment becomes too hot or too cold, your body responds
by sweating, shivering, or changing the flow of
to
maintain a body temperature of 37?C.
G. Energy
1. Cells continuously use new cells, and perform chemical reactions.
to transport substances, make
2. For most organisms, the energy they use originally came to Earth from
the
.
Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Classifying and Exploring Life
11
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