Q: Groundwater dissolves minerals and rocks into what? A:
OPTIONS:
- gravel
- sand
- grit
- ions
ions

Q: How is energy expressed when it is released in a chemical reaction? A:
OPTIONS:
- as an equation
- as a percentage
- as a positive number
- as negative number

Answer: as negative number

Question: Q: Why do birds need a light-weight body? A:
OPTIONS:
- for cooling
- water flotation
- food shortages
- to stay aloft
Answer: to stay aloft

input with options: Q: When matter reacts, there can be what that comes from nowhere and is unaccounted for? A:
OPTIONS:
- concentrations
- combustions
- bonds
- mass
output: mass

Q: Q: Moving electrons have a form of kinetic energy called what? A:

OPTIONS:
- potential energy
- electromagnetism
- deformed energy
- electrical energy

A: electrical energy

Q: What is said about the speed of rotation in systems that create tornadoes? A:
OPTIONS:
- it is magnetic
- it is unchanged
- it is fast
- it is slow
it is slow