Acids and Bases
Science FUNdamentals
OUTLINE
Mystery Acids and Bases!
Background
Acids: Sour
Bases: Bitter
Indicators: Change colours to tell us If something is an acid or a base
Example: Litmus Paper
QUESTION TIME
Acid: | Base: |
Fun Fact: Acid in your stomach helps you digest food!
There are many household examples that people use in their homes daily!
Some common examples:
Indicators!
How can we identify Acid and Bases?
Magical Colour Changes
Mystery Acids and Bases and the Magical Colour Changes
pH Scale: range of colours and numbers that indicate acids or bases
Red Cabbage is an Indicator with
a pH scale that looks like this:
The Indicator will change colour depending on the solution.
Which Solution is an Acid? Which is a Base?
Classroom Chemistry
Classroom Chemistry
Classroom Chemistry
If your solution turns pink it is an Acid
If your solution turns blue it is a Base
The more pink the solution, the more acidic it is
The more blue the solution, the more basic it is
QUESTION TIME
-measure something called protons in the solution
-The indicator changes colour in response to the number of protons
The Shell Less Egg!
The Shell-less Egg
The Shell-less Egg
which is a base
What has happened to the egg in these 7 days?
An Explosive Acid/Base Reaction
An Explosive Reaction
An Explosive Acid/Base Reaction
Baking Soda is a Base
Vinegar, is an acid
What will happen if these two are mixed in an acid/base reaction?
QUESTIONS ?