Answer: There are five signs of chemical change
- Color Change
- Production of an odor
- Change of Temperature
- Evolution of Gas (bubbles start to form)
- Precipitate (starts to form a solid)
When these signs start to form you know chemical change is at work.
Hope this helps :)
Burning less fossil fuels and riding bikes or walking instead of cars.
Explanation:
The rate of change in velocity<span> is called acceleration.</span>