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Friday, May 11, 2018

Exploding coke

Aim: To see if coke explodes when a Mentos lolly is dropped into it using different temperatures and different kinds of coke.

Hypothesis: 

Steve Spangler Mentos & Coke Experiment

We can do better: We need to try several experiements to see which one works best

Equipment:

Ruler
Beaker
Thermometer
Coke Mentos
Measuring flask

Method:

Stage 1: ( All groups)
  1. Add 150ml of coke to a measuring flask
  2. Place the flask in the sink.
  3. Drop in 1 mentos a watch the effect.

Group 1  ( Levi)

Test 1
  1. Heat up 50ml in a beaker of coke ( Using a thermometer heat it to 75 degrees)
  2. Place the beaker ion the sink and add a mentos.
Test 2
  1. Add 50 ml of cold diet coke to a beaker
  2. Add 5 mentos.
  3. Record the hieght it reachs
Group 2  ( Tehya)

Test 1
  1. Heat up 50ml in a beaker of coke ( Using a thermometer heat it to 45 degrees)
  2. Place the beaker ion the sink and add a mentos.
Test 2
  1. Add 50 ml of cold diet coke to a beaker
  2. Add 5 mentos.
  3. Record the hieght it reach
Group 3  (Lars)

Test 1
  1. Heat up 50ml in a beaker of coke ( Using a thermometer heat it to 30 degrees)
  2. Place the beaker ion the sink and add a mentos.
Test 2
  1. Add 50 ml of cold diet coke to a beaker
  2. Add 5 mentos.
  3. Record the height it reach
Group 4  (Jaz)

Test 1
  1. Heat up 50ml in a beaker of coke ( Using a thermometer heat it to 15 degrees)
  2. Place the beaker ion the sink and add a mentos.
Test 2
  1. Add 50 ml of cold diet coke to a beaker
  2. Add 5 mentos.
  3. Record the height it reach
Group 5 (Rinieya)

Test 1
  1. Heat up 50ml in a beaker of coke 
  2. Place the beaker ion the sink and add a mentos.
Test 2
  1. Add 50 ml of cold diet coke to a beaker
  2. Add 5 mentos.
  3. Record the height it reach
Findings:

Add your measurements to the table


Liquid
Height
Coke

Crushed mentos

Coke zero
Didn't explode 
75 Degrees

45 Degrees

30 Degrees
Best time to do it
15 Degrees
Didn't explode

More investigations:
  1. Does it work better with hot Coke( group 1) , warm Coke ( group 2 ) or cold Coke?( group 3)
  2. Use Normal and Coke zero.
  3. Does crushed Mentos work better than whole Mentos?( group 4) 

Friday, May 4, 2018

Science

e type
How does it behave?
Time ( secs)
Paper sheet, drop
It just went straight to the ground.

3.55
Paper with fold down middle, drop
It didn't stay in the air for very long it just dropped.

2.95
Paper with fold and 1 paper clip, drop
It just drifted and then dropped

3.01
Fold, 2 clips, rudder, drop
It stayed in the air for longer.

3.89
Fold, 2 clips, rudder throw


It stayed in the air for way longer than the last time and just glided while in the air

4.83

Findings:
When I first dropped the paper it just dropped but it took longer to come down. The second time I did it it just glided and and cam straight back down. On the last time it just glided and it took longer to come down then the rest.


Science

Kete

We have been going around all different classes learning the different types of science. Throughout these lessons the teachers have been taking some photos. Here are some of them...