Materials Used in Daily Life
Food and cleaning chemicals · Metals and non-metals · Effects on the environment
Name the chemicals used in food and give their chemical names
Know the cleaning chemicals and what each is used for
Tell the physical properties of metals from those of non-metals
Understand how careless use of chemicals and metals harms the environment
Baking soda: sodium bicarbonate, makes food rise
Common salt: sodium chloride, taste and preservation
Sugar: sucrose, from sugarcane juice
Ghee and oil: they give energy and heat
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