Acid and alkali year 3

Examples of acidic substance except (kecuali)

• Lime juice

• Toothpaste

• Vinegar

Example of alkali substance

• Orange juice

• Cucumber juice

• Apple juice

Blue litmus paper turn to red

• Acid

• Alkali

• Neutral

Red litmus paper turn to blue

• Acid

• Alkali

• Neutral

The colour of litmus paper no changes

• Acid

• Alkali

• Neutral

Plain water substance = _______

• Acid

• Alkali

• Neutral

We can make our own litmus paper using

• Purple cabbage extract

• Hibiscus extract

• Turmeric extract

• Cooking oil

Turmeric litmus paper colour are

• Yellow

• Red

• Blue

• Green

Turmeric litmus paper colour red turn to yellow

• Acidic substance

• Alkaline substance

• Neutral substance

Turmeric litmus paper yellow turn to red

• Acidic substance

• Alkaline substance

• Neutral substance