Natural Science "Interaction"

2. UNIT1INTERACTION

3. Which organ system interacts with most
other systems in the body?
◦Nervous system
◦Our nervous system interacts with every other system
in your body. In the same way that all of your cells
need oxygen transported by the circulatory system,
all of your tissues and organs require instruction and
direction from the nervous system.

5. All the information we recieve by our senses: sight, touch, smell, hearing
and taste allow us to explore the environment around us.
All the information received by our senses is processed by our brain.
It controls our involuntary and voluntary actions.
Investigate: Involuntary and voluntary actions of our body system.
Partner up with the person sitting next to you, using a ruler tap your
partners knee.
What observations do you make?

7. Topics for investigation
◦What is the difference
between a voluntary and
involuntary muscle? Give
an example of each.

8. What are feelings and emotions
(Use your own experience)?

9. What changes do you
experience as you get older?
How have you physically
changed in the last year?
How has your mentality
(emotional feeling) changed
in the last year?

10. All about Puberty
◦ Puberty is the name for the time
when your body begins to
develop and change as you move
from kids and adults.
◦ During puberty, your body will
grow faster than at any other time
in your life, except for when you
were a baby.
◦ It helps to know about the
changes that puberty causes
before they happen.

11. Investigate:
The pituitary gland and the effect that it has on your
body when you go through puberty. In particular the
hormones that it releases.
◦Physical changes
◦Boys
◦Girls
◦Emotional changes