Sunday, May 1, 2011

Order of most evaporated->least

Pineapple juice was the fastest to evaporate
salt waster took the longest
Second was vinegar, third was water

These results verify my research
Using a ruler was enough to show height changes

Varying evaporation times due to:
molecules
colour
reaction with surface

Tuesday, April 26, 2011

Monday, April 25, 2011

Evaporation






My research tells me that the vinegars acetic acid increase the energy of molecules, causing it to evaporate faster. Since it only contains water and acetic acid, it should evaporate faster then water.
Also, Salt water increases the boiling point, causing a slower evaporation time.



I just need a bowl, cup and ruler for the experiment.

Hypothesis

The liquid type affects the speed in which evaporation occurs

New Aim

To find out which liquid evaporates the fastest and why
water
salt water
vinegar
pineapple juice

The last experiment was scrapped because the dependent variable could not be observed like i thought it would.

Thursday, April 21, 2011

change

panadol did not really show any reactions so i am using lime water for my base instead

Monday, April 18, 2011

Equipment

Cup
measuring cup
Panadol/nurofen
orange juice
vinegar
soda

Hypothesis

neutrlization changes the ph level of a substance

Aim

To observe the reaction between an antibiotic and an acid

Tuesday, March 15, 2011