Unit 19 · Types of pesticides

Natural Materials Used in Cleansing Presentation

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Science and Technology, Grade 10 · Unit 19

Natural Materials Used in Cleansing

Reetha, peena, wood ash · Sajiban and lemon juice

By the end of this lesson you can

🧼

Name five natural cleansing materials

🔬

Say what each one contains

🧽

Explain how each one cleans

🌱

Give their other uses, such as fertilizer and biodiesel

Five cleaners from nature

🟤

Reetha: a soft natural soap

🌾

Peena: washes and feeds hair

🔥

Wood ash: a scrubbing paste

🌿

Sajiban: twigs clean teeth

🍋

Lemon juice: an acidic cleaner

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Presenter notes: Before shops sold soap and shampoo, families here cleaned with things from trees and the kitchen fire. Today we find out what those things are and why they work.