Q: Which is an example of a chemical change? ---- OPTIONS:
- a rusting car fender
- a spinning top
- a spilled bucket of water
- a melting popsicle

A: a rusting car fender

Q: Cancer is best described as ---- OPTIONS:
- a type of genetic engineering
- the merging of sex cells
- abnormal cell division
- tissue that stops growing

A: abnormal cell division

Q: In making a pizza, which process involves a chemical change? ---- OPTIONS:
- mixing spices for the sauce
- slicing pepperoni for the topping
- spreading cheese on the pizza
- baking the dough to form the crust

A: baking the dough to form the crust

Q: A cat jumps when startled by a loud noise. This is an example of an organism ---- OPTIONS:
- sensing and responding to its external environment
- sensing and responding to its internal environment
- changing and controlling its external environment
- changing and controlling its internal environment
A: sensing and responding to its external environment