Acids and Bases

 

Today in science we learned about acids and bases. Here are some question that the teacher wanted us to think about:

• What is pH?

pH is a measurement of how acidic/basic water is.

• How do you measure pH?

 You can measure pH using litmus paper.

• What is the scale of pH is measured on?

PH is measured on the range goes from 0 - 14.

• What pH level does water have? Is water acidic, basic or neutral?

Pure water has a pH of 7 and it is neutral because it has neither acidic nor basic.

• What is the most acidic pH level?

the most is zero the most acidic.

• What is the most basic pH level?

Th most is 14 .

Something else the teacher also told us s some facts is the most liquid is ether an acid or base depending on the type of Ions. The different types of ions we have learnt so far is hydroxide ions hydrogen ions. She also told us that the pH scale is always 0 to 14. And that usually acid is bad but all acids are bad like lemons, grapes and oranges, they have citric acid 

now we did the task:

Task 1

Ami:

Test the ph level of the different household products.

Equipments

• Well plante

• Ph strips

• Ph cart

• dropper

Products:

• Baking soda

• Distiled water

• Window cleaner

• toilet bowl cleaner 

• Lemon Juice 

• Milk 

• Orange juice 

• Apple juice

• Vinegar

• tea

Substance	acid base Prediction	Colour changes from	resault
tea	base	Blue to Red	Acid
Apple juice	acid	Blue to red	Acid
Orange  juice	acid	Blue to red	Acid
Soap	acid	Blue to red	Weak Acid
vinegar	acid	Blue to red	Acid
Baking soda	acid	Red to blue	Base
Distill water	base	Blue to red	Weak Acid
milk	Base	Red to blue	Acid
Window cleaner	acid	Blue to pink	Acid
Toilet cleaner	acid	Blue to red	Acid