Question

True or False.
Exhaust from rocket fuel as a spaceship leaves the ground = Chemical change
2 bumper cars collide and move away from each other = Physical change
2 swings on the playground hit each other and one swing moves away = Physical change
A baseball player hits a ball and the bat shatters = Physical change

Answer 1

Let's analyze each statement:

1. **Exhaust from rocket fuel as a spaceship leaves the ground = Chemical change**
- **True**: The combustion of rocket fuel involves a chemical reaction that produces exhaust gases, indicating a chemical change.

2. **2 bumper cars collide and move away from each other = Physical change**
- **True**: The collision of bumper cars results in a change in motion but does not change the identity of the bumper cars; thus, it is a physical change.

3. **2 swings on the playground hit each other and one swing moves away = Physical change**
- **True**: Similar to the bumper cars, the swings colliding and moving apart does not change their identity, so it is a physical change.

4. **A baseball player hits a ball and the bat shatters = Physical change**
- **False**: While the impact involves a physical interaction, if the bat shatters, that means there is a permanent change in the structure of the bat itself, which results in a chemical change at the material level (the breakage of the bat's material).

Overall:
1. True
2. True
3. True
4. False