*Question*
Q: Magma can be created when temperature rises, pressure lowers, or what else is added? Choices: - dirt - air - sand - water A:
**Answer**
water

*Question*
Q: What are reversible physical changes in matter called? Choices: - chemical change - alterations - transformations - changes of state A:
**Answer**
changes of state

*Question*
Q: In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is called what? Choices: - acetic - hypothermic - hydrophilic - hypertonic A:
**Answer**
hypertonic

*Question*
Q: What is an isotope that is radioactive called? Choices: - isotopes - matured isotope - radionuclides - radioisotopes A:
**Answer**
radioisotopes