Question

Match each description to the correct type of change.

1.________ Reacting baking soda with vinegar.:

2. _______A change that produces matter with a different composition than the original matter.:

3.___________ Cutting a piece of wood.:

4.__________ Cooking a cake.:

5.__________ Melting ice (water changing from the solid to the liquid state).:

6.________ A change in which the composition of the material does not change.:

7.________ Iron rusting to become iron oxide.:

8._______ Boiling water (water changing from the liquid to the gas state).:

9._______ Bending copper wire.:


10._____ Silver tarnishing to become silver sulfide.:

Choices:

a. chemical change

b. physical change

choose the correct answers.

Answer 1

Here are the matches for each description with the correct type of change:

1. **a** Reacting baking soda with vinegar.: **chemical change**

2. **a** A change that produces matter with a different composition than the original matter.: **chemical change**

3. **b** Cutting a piece of wood.: **physical change**

4. **a** Cooking a cake.: **chemical change**

5. **b** Melting ice (water changing from the solid to the liquid state).: **physical change**

6. **b** A change in which the composition of the material does not change.: **physical change**

7. **a** Iron rusting to become iron oxide.: **chemical change**

8. **b** Boiling water (water changing from the liquid to the gas state).: **physical change**

9. **b** Bending copper wire.: **physical change**

10. **a** Silver tarnishing to become silver sulfide.: **chemical change**

So, the final answers are as follows:

1. a
2. a
3. b
4. a
5. b
6. b
7. a
8. b
9. b
10. a