ACIDS AND BASES WEBQUEST
❖Part 1: Acids and Bases Introduction:
Go to the http://www.chem4kids.com/files/react_acidbase.html and read about
acids and bases.
1. Define an acid?
2. Define a base?
3. How do scientists measure the strength of acids and bases? Describe this scale.
4. Describe the physical properties such as taste and feel of acids and bases.
http://education.abc.net.au/res/i/L5814/index.html
Properties of Acids
Neutral
Properties of Bases
● Next, we will take a look at some examples of acids and bases.
● Go to the VisionLearning Website and learn more about the
properties of acids and bases.
5. Give 4 examples of acids and 4 examples of bases from the pH Scale on the site.
Examples of Acids
Examples of Bases
❖Part 2: Acid and Base Notes
http://www.visionlearning.com/library/module_viewer.php?c3=&mid=58&l
1. The word acid comes from the Latin word _____________________ meaning
__________________.
2. Boyle stated that acids taste ___________________, are corrosive to
_____________________, change the color of litmus to _______________, and
become less acidic when mixed with _______________.
3. He described bases as feeling ________________________, changing litmus to the
color ______________, and becoming less basic when mixed with an ___________.
4. About 200 years later, Arrhenius proposed that water can dissolve many
compounds by separating them into their individual _____________.
5. He suggested that acids contain _____________ and can dissolve in water to
release _________________.
6. Bases dissolve in water to release _______________________ ions into the
solution.
http://www.chem4kids.com/files/react_acidbase.html
1. Every liquid has __________ & ____________ traits. ____________ can be
both an acid and a base, depending on how you look at it.
a. It can be considered an acid in some reactions and a base in others.
Water can even react with itself to form acids and bases.
2. Most of the time, the positive and negative ___________ in distilled water are
in equal amounts and cancel each other out.
3. Most water you drink from the __________ has other ions in it.
4. Those special ions in solution make something acidic or basic.
5. In your body there are small compounds called ____________
6. The name tells you those are acids. In fruits there is something called
_______________.
7. A chemist named _______________________ came up with a way to define
acids and bases in 1887.
8. He saw that when you put molecules into water, sometimes they break down
and release an ______________________.
9. At other times, you find the release of an ____________________
10.When a hydrogen ion is released, the solution becomes _____________.
When a hydroxide ion is released, the solution becomes _________________.
❖Part 3: Understanding the pH scale
● SITE #1
https://phet.colorado.edu/sims/html/ph-scale-basics/latest/ph-scale-basics_en.html
1. Using the simulation, report the pH reading and classify into acid or base
Subtance
pH
Acid or
Base
Substance
pH
Acid or Base
Drain
Cleaner
Orange
Juice
Blood
Battery
Acid
Spit
Soda Pop
(Dr Pepper)
Hand
Soap
Vomit
Chicken
Soup
Coffee
Milk
● SITE#2 www.harcourtschool.com/activity/acids
2. By clicking on each one of the test tubes complete the chart below
Test Tube
Litmus paper
color
pH
Acid or
base?
Substance
#1
#2
#3
#4
#5
● SITE #3 https://www.quora.com/What-are-the-pH-of-different-organs Track the pH as
you travel through the digestive system.
SALIVA = _________________________
UPPER STOMACH = _________________________
LOWER STOMACH = _________________________
DUODENUM = _________________________
SMALL INTESTINE = _________________________
LARGE INTESTINE = _________________________
❖Part 4: Acid Base Review
● Reveiw this website make any adjustments in your answwers above
http://chemistry.about.com/library/weekly/bl060603a.htm
❖Part 5: Assessments
● Use the links in Google Classroom to complete the assessments
https://quizizz.com/admin/quiz/5cb7e6c66ac815001aa6b813
