Which liquid evaporates the fastest: water, 7 Up, honey, hand

Report
Mrs. Alvis’
Class
Science Inquiry Showcase 2011-2012
Which liquid will evaporate the most
over 7 days: water, Cherry 7 Up, dark
corn syrup, hand sanitizer, vinegar, or
vegetable oil?
Hypothesis
• Most of us think water will evaporate the most because it is natural, doesn’t
have any chemicals, and the other liquids are stickier than water.
• Some of us think Cherry 7 Up will evaporate the most because it
has bubbles that can make the Cherry 7 Up float away faster.
• One student predicts that hand sanitizer will evaporate the most because it
evaporates quickly on your hands.
Materials
•
•
•
•
•
•
100 ml Water
100 ml Cherry 7 Up
100 ml Dark Corn Syrup
100 ml Hand sanitizer
100 ml Vinegar
100 ml Vegetable Oil
•
•
•
•
Window
Masking Tape
Marker
6 Graduated Cylinders
Procedures
1.
2.
3.
4.
5.
6.
Pour 100 ml of water into one graduated cylinder. Label the graduated cylinder
with masking tape.
Pour 100 ml of Cherry 7 Up into one graduated cylinder. Label the graduated
cylinder with masking tape.
Pour 100 ml of hand sanitizer into one graduated cylinder. Label the graduated
cylinder with masking tape.
Pour 100 ml of dark corn syrup into one graduated cylinder. Label the
graduated cylinder with masking tape.
Pour 100 ml of vinegar into one graduated cylinder. Label the graduated
cylinder with masking tape.
Pour 100 ml of vegetable oil into one graduated cylinder. Label the graduated
cylinder with masking tape.
Procedures
7.
Record in notebook or on a data sheet how much liquid is in
each graduated cylinder.
8. Place graduated cylinders in the window.
9. The next day, measure and record the amount of liquid in
each cylinder.
10. Continue to measure and record the amount of liquid in the
cylinders for 7 days.
Day 1
• All liquids are at 100 ml.
Day 3
Water
Cherry 7
Up
Hand
Sanitizer
Dark Corn
Syrup
Vegetable
Oil
Vinegar
99 ml
93 ml
94 ml
100 ml
100 ml
97 ml
Day 7
Water
Cherry 7 Up
Hand
Sanitizer
Dark Corn
Syrup
Vegetable Oil
Vinegar
93 ml
88 ml
86 ml
100 ml
100 ml
92 ml
Day 7
Water
Cherry 7 Up
Hand
Sanitizer
Dark Corn
Syrup
Vegetable Oil
Vinegar
93 ml
88 ml
86 ml
100 ml
100 ml
92 ml
Data
Day 1
Day 2
Day 3
Day 4
Day 7
Water
100 ml
Cherry 7 Up 100 ml
Hand
100 ml
Sanitizer
100 ml
94 ml
100 ml
99 ml
93 ml
94 ml
99 ml
91 ml
91 ml
93 ml
88 ml
86 ml
Dark Corn 100 ml
Syrup
Vegetable Oil 100 ml
Vinegar
100 ml
100 ml
100 ml
100 ml
100 ml
100 ml
98 ml
100 ml
97 ml
100 ml
97 ml
100 ml
92 ml
Results
• Over the 7 days, dark corn syrup and vegetable oil did not
evaporate at all.
• The hand sanitizer evaporated the most.
• Cherry 7 Up evaporated the second fastest.
• Vinegar evaporated the third fastest.
• Water evaporated the fourth fastest.
• Cherry 7 Up and vinegar are the only liquids that evaporated on
Day 2.
Conclusion
• Claim – Hand sanitizer evaporated the most of all the liquids.
• Evidence – On day 7, hand sanitizer had 86 ml left, the least
amount of all the liquids.
• Reasoning – We think hand sanitizer evaporated the most because
of the chemicals that are in it. Also, we know that when we use
hand sanitizer, it dries faster than water on our hands. We think
that maybe the more it is exposed to air, the quicker it will
evaporate.
Thoughts from the Class
“I was surprised about the
hand sanitizer because I
thought the water would
faster.” – Lily
“Ievaporate
think everyone
expected the
dark corn syrup
to not move
because it is so
sticky.” – Josie
“I was surprised because at
first 7 Up was evaporating
the fastest, then the hand
sanitizer evaporated the
fastest.” – Reese and Katey

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