Chemical Change Explorations
Explore the fascinating world of chemical changes, identifying their characteristics and differentiating them from physical changes.
Includes
Standards
Topics
Chemical Change Explorations
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following is a sign that a chemical change has occurred?
Melting ice into water
Cutting paper into smaller pieces
Formation of a new gas
Boiling water
2. When wood burns, it turns into ash and smoke. This is an example of a:
Physical change
Chemical change
State change
Phase change
1. A chemical change results in the formation of a substance.
2. Rusting of iron is an example of a change.
3. One common sign of a chemical change is a change in .
1. All physical changes are reversible.
True
False
2. A chemical change always involves a change in the composition of matter.
True
False
1. Describe two differences between a physical change and a chemical change.
2. Give an example of a chemical change you might observe in your kitchen.
Observe the image below, which shows a thermite reaction, a powerful chemical change. What evidence of a chemical change can you identify?
