Lesson 12: Investigation 1 "Identifying Chemical Reactions"

Open Ended

What are some observable changes that occur when a firework explodes, and how might these changes be related to chemical reactions?

Multiple Select

What evidence suggests that a chemical reaction occurs when fireworks are lit?

• The production of smoke and odor

• The loud sound

• The colorful display

• The shape of the explosion

Multiple Select

Which of the following are products formed when acetic acid (in vinegar) reacts with sodium bicarbonate (in baking soda)?

• Sodium acetate

• Carbon dioxide

• Water

• Acetic acid

Open Ended

What is one type of evidence that a new substance has formed in a chemical reaction?

Open Ended

What is one property that changes in sodium hydroxide and vegetable oil, when it reacts to form soap?

Open Ended

Besides a color change or odor change, what are 3 other properties of a substance that may change as a result of chemical reaction?

Multiple Choice

What substance do BOTH the sugar and steel wool react with?

• Fire

• Oxygen

• Carbon Dioxide

• Water

Open Ended

Why do you think mixing substances can cause a chemical reaction?

Open Ended

Why is heat one of the ways that a chemical reaction can get started?