BLM 6.1 Your Body’s Framework
Before you read
Students’ answers will vary but may be similar to: We
wouldn’t have any shape. We would be spread out all over.
While you read
Students’ webs will vary. Possible descriptions include: bones are groups of living cells; they
store minerals like calcium, which is why they don’t break easily; they form a skeleton;
examples of bones include skull, ribs, spinal column, and the bones of legs and arms; bones give
shape to the body; they support the body; they protect internal organs such as the heart and
lungs
After you read
The skeleton is made up of different kinds of bones.
BLM 6.2 Your Bones
Before you read
skull, spinal column, ribs, arm and leg bones
While you read
Bones
Skulls
Spinal
column
Ribs
arm and
leg bones
Jobs
– protects the brain
– gives shape to the
face
– supports head and
body
Other Information
– has 28 bones
– largest bone is around the brain
– also called backbone
–made of stacked bones with holes through the centre
– works with muscles to bend, twist, and move head
– protect heart and
– 12 pairs shaped like a cage
lungs
–muscles attached to ribs contract and relax so rib cage
– involved in breathing gets bigger and smaller
– let you move in many – arm has one long bone from the shoulder, two long
ways
bones from the elbow, hand bones attached to the wrist
– leg has one long bone from the hip, two bones below
the knee, foot bones attach
BLM 6.3 How Your Bones Move
Before you read
• bottom of my leg moves back and forth from my knees;
my whole leg moves back and forth from my body
• lower arm moves up and down from my elbow
After you read
Cut and pasted (Marked today in class)
BLM 6.5 Your Muscular System
• the muscle gets bigger; contracts
• the muscle gets smaller; relaxes
While you read
How your muscles move your bones
– muscles are attached to bones by tendons
– muscles contract and pull on bone they are attached to
– this moves the bone
Voluntary muscles
– can control these muscles
–work in pairs
– contract and relax when
you move
– examples include leg
muscles to kick a ball and
arm muscles to raise and
lower your arm
Involuntary muscles
–work without your thinking
about them
– examples include muscles
along digestive system, the
heart, and diaphragm
BLM 6.6 Skin: Your Protective Covering
While you read
Students’ webs will vary. Possible information includes:
protects the body; waterproof cover; holds body systems
inside; prevents infections from entering the body; skin has
different layers (students may connect this to diagram); new
cells made at bottom of the top layer and move to the top
layer and flake off (students may connect this to diagram);
skin replaces itself; important to wash off dead skin cells;
hair and nails are part of skin; nails protect tips of fingers
and toes; hair keeps you warm; hair cushions skull; eyebrows
prevent sweat from entering eyes; eyelashes prevent dirt from
entering eyes
After you read
Both cover and protect what is inside and keep water out.