*Question*
Q: What is the term for the force of attraction between things that have a mass? Choices: - weight - motion - magnetism - gravity A:
**Answer**
gravity

*Question*
Q: What branch of physical science looks at how heat, work, and various forms of energy are related to one another? Choices: - photosynthesis - frigidity - transformations - thermodynamics A:
**Answer**
thermodynamics

*Question*
Q: In the forward reaction, hydrogen and iodine combine to form what? Choices: - hydrogen ionicide - ionic hydrogen - iodinic hydrogen - hydrogen iodide A:
**Answer**
hydrogen iodide

*Question*
Q: Which is the active ingredient of cereal crop disease, ergot? Choices: - byblis acid - amino acid - pixelation acid - lysergic acid A:
**Answer**
lysergic acid