*Question*
Q: Magma can be created when temperature rises, pressure lowers, or what else is added? Read this paragraph and choose the correct option from the provided answers: Magma can be created when temperature rises, pressure lowers, or water is added. Choices: - dirt - air - sand - water A:
**Answer**
water

*Question*
Q: What are reversible physical changes in matter called? Read this paragraph and choose the correct option from the provided answers: Changes of state are physical changes in matter. They are reversible changes that do not change matter's chemical makeup or chemical properties. For example, when fog changes to water vapor, it is still water and can change back to liquid water again. 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? Read this paragraph and choose the correct option from the provided answers: Imagine now that you have a second cup with 100ml of water, and you add 45 grams of table sugar to the water. Just like the first cup, the sugar is the solute, and the water is the solvent. But now you have two mixtures of different solute concentrations. In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is hypertonic , and the solution with the lower solute concentration is hypotonic . Solutions of equal solute concentration are isotonic . The first sugar solution is hypotonic to the second solution. The second sugar solution is hypertonic to the first. Choices: - acetic - hypothermic - hydrophilic - hypertonic A:
**Answer**
hypertonic

*Question*
Q: What is an isotope that is radioactive called? Read this paragraph and choose the correct option from the provided answers: Many elements have one or more isotopes that are radioactive. These isotopes are called radioisotopes. An example of a radioisotope is carbon-14. Choices: - isotopes - matured isotope - radionuclides - radioisotopes A:
**Answer**
radioisotopes