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- 1. Multiple Choice
When bananas ripen a chemical change is taking place. Which sign do you see?
change of color
odor
- 2. Multiple Choice
Which sign of a chemical change do you see in fireworks exploding?
precipitate forms
rust forms
release of heat
- 3. Multiple Choice
Identify the sign that a chemical change is happening in a glass of water with an antacid.
rust
bubbles
odor
- 4. Multiple Choice
Freshly baked cookies is an example of a chemical change. Which sign of a chemical reaction do you experience?
precipitate forms
change of color
release of light
odor
- 5. Multiple Choice
Adding lemon to milk will create a chemical change called?
precipitate
rust
bubbles
light
- 6. Multiple Choice
A sign of a chemical change on a peace of iron that has an orange colour?
light
bubbles
rust
heat
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