Uploaded by Lmay Omsen

1characteristic of living things

Organ system
Learning objectives:
• Identify the seven characteristic of living
things and use the characteristics to decide
whether something is living or non-living
• Discuss the difference between each of the
seven characteristics of life.
• Discuss the difference between breathing and
Characteristics of life
1. Movement – changing the position of all or part of
the body.
animals move to :
- Find shelter
- Find food
- Avoid enemies
Muscles provides movement for
all animals.
Note: Plants moves but only some
2. Respiration – is the process getting energy
from food, often used oxygen.
• Word equation:
• Glucose + oxygen
Carbon dioxide + water
Animals – use oxygen for breathing and release Carbon
Plant – uses carbon dioxide to make food and releases
oxygen as waste.
Difference between breathing and respiration
• Movement of air into • Breakdown of food
and out of the lungs.
to release energy.
• Takes place in and
• Takes place in all
out of the lungs.
body cells.
3. Sensitivity – living organisms able to
detect/respond to changes in their surrounding.
Main human senses: sight, hearing , smell , taste,
touch, temperature detection (feeling)
Characteristics of life
4. Growth – gets bigger and stays bigger.
• Organisms change in size, shape, height and
other development that takes place in an
Characteristics of life
• 5. Reproduction – is the process by which
organisms produce offspring.
6. Excretion – is the process of removing waste
products from organism’s body.
• Waste are released in urine, sweat and carbon
dioxide in air that we breathed out.
7. Nutrition - the process by which living
organisms take in or make food.
(Animals cannot make their food so they take
(Plants make their own food – photosynthesis)
Word equation of photosynthesis:
Carbon dioxide + water
Glucose + oxygen
Testing carbon dioxide in an
exhaled air
Limewater (calcium hydroxide dissolved in water)–
substance used to test the presence of carbon dioxide in
exhaled air.
If carbon dioxide is present the limewater turns white or
The calcium hydroxide
dissolved in the
limewater reacts with
the carbon dioxide.
This makes the water
turn white or milky.
Experiment 1
Testing of carbon dioxide in
exhaled breath
Testing the presence of carbon dioxide in exhaled air
The waste product we
release in our breath is
carbon dioxide.
Group activity
• Poster making
Basis of grading
• Display (organization) - Photographs, drawings,
should be simple, well-organized, and carefully
explain. Each picture should have an explanation
as will as its brief description – 20 points
• Creativity and innovation – creative, eye catching
and well-designed, appropriate use of color and
design – 20 points
• Group cooperation – participation of each group
member while from the start of making the
poster to end. Work should be divided equally. –
20 points
Grades and rewards
• 1st highest score – 5 way to glow,
classwork grade, 10 points for the first
• 2nd - 4 way to glow, classwork grade and
5 points for the first quiz.
• 3rd – 3 way to glow and classwork grade
• 4th – 2 way to glow and classwork grade
• 5th – 1 way to glow and classwork grade.