A Sour and Bitter Journey through the pH Scale
Did you know the tangy taste of lemon or the bitterness of baking soda isn t just a taste, but it s science? Yes, the sour lemon has something called acids, and the bitter baking soda contains bases. The strength of these acids and bases is measured by a scale called the pH scale. This scale ranges from 0 to 14. Substances with a pH value less than 7 are acids, and those with a pH value more than 7 are bases. What happens when they mix? They neutralize each other, just like good defeating evil! This process is called neutralization, which results in salt and water. But it s crucial for the pH level to stay balanced in our bodies and nature for healthy functioning.
Question 1
What is the pH scale used to measure?
Temperature
Weight
Strength of acids and bases
Explanation. The pH scale is used to measure the strength of acids and bases.
Distance
Height
Question 2
What are substances with a pH value less than 7 known as?
Bases
Neutrals
Acids
Explanation. Substances with a pH value less than 7 are known as acids.
Water
Salt
Question 3
What happens when acids and bases mix?
They explode
They create fire
They disappear
They neutralize each other
Explanation. When acids and bases mix, they neutralize each other.
They multiply
Question 4
What is the result of neutralization?
Soda
Milk
Salt and water
Explanation. Neutralization results in salt and water.
Juice
Tea
Question 5
Why is it crucial to maintain a balanced pH level in our bodies?
To lose weight
To gain height
For healthy functioning
Explanation. It is crucial for the pH level to stay balanced in our bodies for healthy functioning.
To change skin color
To increase hair growth
or share via
Assign the ReadTheory pretest to determine students' reading levels.
