Chapter 1: Chemistry in Our Lives
What Is Chemistry?
Chemistry is the study of matter—basically, what stuff is made of, how it acts, and how it
changes. We actually use chemistry all the time in things like food, cleaning products, medicine,
and makeup.
What Is Matter?
Matter is anything that takes up space and has weight.
Examples:
● Water
● Air
● Glass
● Antacid tablets
What Are Chemicals?
Chemicals are substances made of matter that always have the same structure and behave the
same no matter where they are. Some chemicals happen naturally, and some are made by
people (synthetic). Everyday stuff like toothpaste, soap, and food all have chemicals in them.
Chemicals in Toothpaste:
● Fluoride (protects teeth)
● Abrasives (help scrub)
● Sweeteners (make it taste better)
● Detergents (clean your mouth)
Quick Check: Which of these contain chemicals?
● Fruit ✅
● Milk ✅
What Is Chemistry?
Chemistry is the study of matter—basically, what stuff is made of, how it acts, and how it
changes. We actually use chemistry all the time in things like food, cleaning products, medicine,
and makeup.
What Is Matter?
Matter is anything that takes up space and has weight.
Examples:
● Water
● Air
● Glass
● Antacid tablets
What Are Chemicals?
Chemicals are substances made of matter that always have the same structure and behave the
same no matter where they are. Some chemicals happen naturally, and some are made by
people (synthetic). Everyday stuff like toothpaste, soap, and food all have chemicals in them.
Chemicals in Toothpaste:
● Fluoride (protects teeth)
● Abrasives (help scrub)
● Sweeteners (make it taste better)
● Detergents (clean your mouth)
Quick Check: Which of these contain chemicals?
● Fruit ✅
● Milk ✅
