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Application_of_Chemical_Substances_Household_Personal_Care.pptx

Application_of_Chemical_Substances_Household_Personal_Car

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CHEMICALS IN EVERYDAY PRODUCTS Household and Personal Care Products BLEA CH SOAP 1
LEARNING TARGET Identify substances and their functions using product labels. 2
WHAT IS A CHEMICAL SUBSTANCE? A substance is matter with a particular composition and properties. ELEMENT COMPOUND MIXTURE 3
READING A PRODUCT LABEL Look for: • Active ingredients • Other ingredients • Warnings and directions LABEL NAME • INGREDIENT • FUNCTION 4
BLEACH BLEACH Common substance: Sodium hypochlorite NaOCl FUNCTION: DISINFECTS & WHITENS 5
DETERGENT LAUNDRY DETERGENT Surfactants help water mix with oily dirt and grease. FUNCTION: REMOVES DIRT 6
BAKING POWDER BAKING POWDER Sodium bicarbonate plus acidic salts release CO gas. ₂ FUNCTION: MAKES DOUGH RISE 7
SHAMPOO SHAMP OO Surfactants remove oil, sweat, and dirt from hair. FUNCTION: CLEANS HAIR 8
SOAP SOAP Soap contains fatty-acid salts. They help remove oils. FUNCTION: CLEANS SKIN 9
TOOTHPASTE TOOTHPASTE Fluoride compounds help strengthen tooth enamel. FUNCTION: HELPS PREVENT CAVITIES 10
HY ARE THESE CHEMICALS USED They can CLEAN, DISINFECT, WHITEN, PROTECT, or PRESERVE. 11
ELEMENT OR COMPOUND? Na — Sodium O — ₂ Oxygen NaOCl — Sodium hypochlorite NaHCO — Sodium ₃ bicarbonate Element = one kind of atom Compound = two or more elements chemically combined 12
FUNCTIONS OF INGREDIENTS CLEANER DISINFECTANT WHITENER PRESERVATIVE 13
PRODUCT LABEL TABLE Product Substance Function Element/ Compound Bleach Sodium hypochlorite Disinfects / whitens Compound Detergent Surfactants Removes dirt and oil Compounds Baking powder Sodium bicarbonate Releases CO₂ Compound Shampoo Surfactants Cleans hair Compounds Toothpaste Fluoride compound Helps protect enamel Compound 14
GROUP ACTIVITY: LABEL DETECTIVES Choose a household or personal-care product. Read its label. Record 3–5 substances and their functions. PRODUCT → SUBSTANCE → FUNCTION 15
YOUR PRODUCT-LABEL TABLE Product Substance Function Element/ Compound 16
SAFE USE OF CHEMICAL PRODUCTS Read the label. Follow directions. Never mix unknown chemicals. Keep products away from children. 17
QUICK CHECK 1. What substance disinfects bleach? 2. What do surfactants do? 3. What gas helps dough rise? 4. Why is fluoride used in toothpaste? 18
EXIT TICKET Name ONE product. Name ONE chemical substance. State its FUNCTION. Explain why the function is useful. 19
KEY TAKEAWAYS Product labels tell us WHAT is present and WHAT it does. Chemicals have useful functions when used safely. 20