Download Year 8 Unit 1 Taking Care of Ourselves and Others POS 2011/12

Year 8 Unit 2
POS 2014/15 December to end of February
Taking care of the environment – plants help the environment (and us!) in many different ways.
Key concept: Relationships
Related concepts: interaction
Global concepts: Scientific and technical innovations
Statement of inquiry: We depend on plants - they are the lungs of the Earth.
Inquiry question: How does your everyday life depend on plants?
Month
Topic
Objectives
Practicals/activities
Resources
Assessment
Students should be able to:
December
(before
Christmas)
Gaseous Exchange
• know the structure of the
mammalian breathing system
(larynx, trachea, epiglottis,
bronchi, bronchioles, alveoli,
pleural membranes, diaphragm
and intercostal muscles)
• understand how the structure
of the alveoli and blood
capillaries enable gaseous
Y8 Unit 1
Creating lung model and
producing
an Science 3 49-58
Crit A, part D
Video
instructional video on
the making and the
working of the lung
model
Prac:
Blowing
into
limewater to observe
P1
exchange to occur and the
importance of diffusion in
gaseous exchange across the
alveoli
how
carbon
dioxide
changes the colour of
limewater
Prac: Measuring lung
capacity
• understand the effects of
smoke and air pollution on the
breathing system
• know that air breathed out
contains more carbon dioxide
and less oxygen than air breathed
in
January
(after NY)
Cellular Respiration
• understand that aerobic
Measuring
respiration involves transferring
breathing rate before Chapter 18a-b
energy from glucose to a cell;
and after climbing stairs.
oxygen is needed and carbon
dioxide is produced
• state the word equation for
change
in Spotlight 8
Chapter 21d
Chapter 22d
Science 3: p 102
aerobic respiration
Criterion B,C
Independent and
dependent variables
Summative:
Xtranormal video –
Instructional video
showing examples of
independent ,dependent
and control variables
Biology For You
Y8 Unit 1
P2
• appreciate the uses of
Chapter 4
transferred energy to organisms
Science 2: p 36,178,179
(e.g. movement, growth and
warming the body)
• understand that anaerobic
respiration can occur in human
Criterion B,C
Summative: Lab
Assignment
Investigating how
exercise affects heart
rate
Anaerobic respiration in
yeast – balloon over a
muscles, and that lactic acid is
flask of sugar and yeast
produced and later removed using
solution,
testing
the
oxygen
collected
gas
with
limewater
Science 3: p 58
• appreciate that respiration
occurs in all living cells
•Understand that oxygen and
nutrients are carried by blood and
pumped around by the heart
•Understand the
Y8 Unit 1
P3
interdependence between plants
and animals
February
Plant science
• understand the significance of
Iodine test for starch in Plant science booklet
photosynthesis in making food
normal and de-starched Spotlight 8
in leaves
Chapter 24 a-c
• appreciate that photosynthesis
transfers energy from sunlight
into energy in chemicals, such as
glucose and starch
• understand the significance of
chlorophyll as a light-absorbing
molecule
Demonstration of pond Biology For You
weed
producing
air Chapter 12
bubbles under water
Celery in food dye and
cut out stained xylem
tubes
Demo:
potometer
demonstration
of
• understand the requirements
transpiration
under
for photosynthesis; the nature of
normal
windy
and
the products formed; the effects of conditions
altering the conditions on the rate
Y8 Unit 1
P4
of photosynthesis
• write the word equation for
photosynthesis
Science 2: p35
• appreciate how the structure of
a leaf enables photosynthesis to
Microscopy: Nail varnish
occur effectively
imprint of stomata
• be able to perform starch tests
Microscopy:
on leaves
• understand how photosynthesis
affects the concentrations of
carbon dioxide and oxygen in
prepared
slides of plant structure
Dissection of flowers to
identify flower parts
Science 2: p174 to 183
water or the atmosphere
• understand how gaseous
exchange occurs in plants
• appreciate the variety of
Y8 Unit 1
P5
factors that limit the rate of
photosynthesis, and ways of
overcoming the limitations when
growing plants for food or other
uses
• understand how plants absorb
water
• explain how different
environmental factors affect the
rate of water absorption by plants
• label flower parts and describe
their functions
• understand how flowering
plants reproduce by describing the
Criterion A
Plant science and
Cellular Respiration
Summative:
Examination
Written test
processes of pollination,
fertilization, and seed dispersal
Y8 Unit 1
P6