Data logger

1. MOHAMAD AZRIN BIN MOHAMAD KUDUS D20152071983
NUR HIDAYAH BINTI ABDUL HAMID D20152071979
NURULATIKAH BINTI ABDUL KHALID D20152071971

2. DATA LOGGER
 A data logger is an electronic device that is used to
store data over time.
 Data-logging interfaces connect to computers and can
have sensors plugged into them. They convert the
readings which they derive from the sensors into data
which the computer can use.
 Applications range from obtaining a record of wind
speed to tracking temperature in refrigerated storage
containers, to monitoring flow rate at a remote
pumping station.

3. INTRODUCTION- ENGAGE
Fish is the one an aquatic life. It can swim into
the deep and shallow level of water. What is
the ability of the fish that able them to swim
in the water?
??

4. EMPOWER-HYPOTHESIS 1
 If swim bladder as a “living membrane” is
selectively permeable, then it will
demonstrate osmotic properties.

5. EXPERIMENT PROCEDURE
 A fresh swim bladder is used to construct an
osmometer.
 The bladder is filled with sucrose solution
and placed in a beaker of distilled water.
 Pressure sensor is used to measure the
pressure change inside the swim bladder.

6. SETUP OF THE EXPERIMENT

7. RESULT
 In the try out experiment two setups were
prepared. With both setups running in
parallel, the pressure changes within the
swim bladders were recorded by a computer.
 The monitor screen displaying the results
was captured and shown below.

9. Both setups recorded a significant increase in
pressure within 26 minutes, which is quite
good.
And if allowance is made for the differences
between individual setups, by adjusting the
scale of the vertical axis, the curves plotted
will bear striking resemblance

10. CONCLUSION
 The rise in pressure was probably due to
osmotic intake of water.
 The experimental results support the
hypothesis that swim bladder (as a “living
membrane”) is selectively permeable.
 The experimental results also show that
swim bladder is an appropriate material for
the study of osmosis.

11. UNIQUE FEATURES OF THIS
ACTIVITY
2 graph can be
plotted at the same
time
easy to handle and not
wasting time
The changes of the data can be
observed immediately, allow student to
detect error
The experiment can be
repeated many times to
obtained the accurate
reading
DISCUSSION CAN TAKE
PART AFTER THE
EXPERIMENT WITHOUT
WASTING TIME

12. APPLICATION OF DATA LOGGER IN
DAILY LIFE- ENHANCE
Why does the fish is unable to swim properly in order to
rise to the top of the water? Have you ever seen this
phenomenon before?

13. THAT’S ALL FROM US …THANK YOU
DON’T CHASE SUCCESS, CHASE EXCELLENT AND SUCCESS WILL FOLLOW- RANCHO.