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  • 10.16 Thursday 6th June 2013 Task

    June 5th, 2013

    Directions: For this tutorial you will read four short articles about homeostasis, comparing the endocrine and nervous system and Thermoregulation and then answer the questions that appear below.  You should answer the questions on a separate sheet of paper or Word Doc, and then print them when you are finished.  Good luck!

    A template with the questions on can be found in Public:Subjects:Science:MCN:BTEC:Homeostasis Task

    1.  Homeostasis and Thermoregulation BBC Bitesize

    2. Controlling Body Temperature

    3. Nervous system summary

    4. Endocrine system summary



    1. Which out of the endocrine or the nervous system maintains homeostasis and has long lasting effects?


    1. Which out of the endocrine or the nervous system allows the body to respond instantly to a change in the environment, but the effect is short lived?


    1. Fill in the table


    Endocrine System

    Nervous System

    Speed of Communication



    Method of Transport



    Duration of Response




    4. Highlight which one of the following phrases correctly gives the method of transmission in the nervous system?

    A. Carried in the blood

    B. electrical impulses along neurons

    C. carried in the lymph

    D. Hormones

    5. What 3 things does our body do in response to cold and for each response explain why this helps keep us warm?

    6. What 3 things does the body do in response to heat and for each response explain why this helps us cool down?

    7. Now try 2 of the following 6 mark questions?

    • Explain how the endocrine system maintains blood glucose levels?
    • Explain how body temperature is maintained at 37˚C?
    • Explain the difference in communication between the endocrine system and the nervous system?

    10g 30/11/2012

    November 30th, 2012

    Giant Ionic Lattice


    Simple Molecular


    Giant Molecular


    New blog for our Tuesday computer science stuff

    October 5th, 2012


    I have created this new blog and transferred all previous posts to do with the Raspberry pi, python and electronics there.

    Why? So you can register and post your own projects, idea, problems and solutions.

    Please use your SCHOOL EMAIL when registering and then hassle me to enable your account.

    I will no longer use this blog for computer science things.

    Gettign started with the Linux command line

    October 2nd, 2012


    Worth checking out if you are new to linux.

    Updating the firmware for RPI

    October 1st, 2012


    The instructions here will install rpi-updater on your system so you can update firmware if you need to. Dont forget to sudo everything including the line…

    wget http://goo.gl/1BOfJ -O /usr/bin/rpi-update && chmod +x /usr/bin/rpi-update

    this needs two..

    sudo wget http://goo.gl/1BOfJ -O /usr/bin/rpi-update && sudo chmod +x /usr/bin/rpi-update

    Logic level. Making the 3.3v GPIO output up to 5v

    October 1st, 2012

    Changing 3.3v (GPIO output) to 5v.


    I did this and managed to up the 3.3v GPIO output to 4.8v on a prototyping board, might be closer to 5v when soldered.

    Robotics servo control

    September 29th, 2012

    Servos work on times pulses that we should be able to program on the GPIOs on the Pi


    I found a no glue case…

    September 29th, 2012


    Might be worth trying out

    Maplin robot arm on PI

    September 25th, 2012

    Tricky one this, the modules were the pain

    Step 1: Install wxPython – I think this is the GUI module

    sudo apt-get update

    sudo apt-get install python-wxgtk2.8 python-wxtools wx2.8-i18n

    Step 2: Install PyUSB – so python can interact with the robot arm by USB. I ended up having to install PIP to get this sorted.

    sudo apt-get install python-pip

    sudo pip install pyusb

    Then the .py files which are available on this guys blog… but to get it workign you have to hunt around at a number of posts and find his code on googlecode


    you need the files;

    arm_1_1.py – used to process text files with movement instructions
    arm_gui.py – run if you just want to control the arm directly
    arm_control.py – the actual code used by the above two programs

    Mr Mac has them if you need them.

    Python portable setup for a USB memory stick

    September 24th, 2012


    Get both version 2 and 3.