*Question*
Q: What is the latin name for mercury?   Read this paragraph and choose the correct option from the provided answers:  In this image, you see small pools of elemental mercury. The Latin name for mercury is hydrargyrum, a compound word meaning “water-silver” (hydr- = water, -argyros = silver), since it is liquid like water but shiny like silver. Mercury is the only pure metal that exists as a liquid at room temperature.   Choices:  - trichina  - stibium  - spirogyra  - hydrargyrum   A:
**Answer**
hydrargyrum

*Question*
Q: A chemical property describes the ability of a substance to undergo a specific what?   Read this paragraph and choose the correct option from the provided answers:  A chemical property describes the ability of a substance to undergo a specific chemical change. A chemical property of iron is that it is capable of combining with oxygen to form iron oxide, the chemical name of rust. The more general term for rusting and other similar processes is corrosion. Other terms that are commonly used in descriptions of chemical changes are burn, rot, explode, decompose, and ferment. Chemical properties are very useful in identifying substances. However, unlike physical properties, chemical properties can only be observed as the substance is in the process of being changed into a different substance.   Choices:  - weight Change  - radiation change  - liquid change  - chemical change   A:
**Answer**
chemical change

*Question*
Q: What is the term for daily cycles of behavior, like the sleep-wake cycle?   Read this paragraph and choose the correct option from the provided answers:  Animals may eat and drink at certain times of day as well. Humans have daily cycles of behavior, too. Most people start to get sleepy after dark and have a hard time sleeping when it is light outside. Daily cycles of behavior are called circadian rhythms .   Choices:  - daily rhythms  - variable rhythms  - behavioral rhythms  - circadian rhythms   A:
**Answer**
circadian rhythms

*Question*
Q: The desire to understand how and why things happen is shared by all branches of what?   Read this paragraph and choose the correct option from the provided answers:  Scientists may focus on very different aspects of the natural world. For example, some scientists focus on the world of tiny objects, such as atoms and molecules. Other scientists devote their attention to huge objects, such as the sun and other stars. But all scientists have at least one thing in common. They want to understand how and why things happen. Achieving this understanding is the goal of science.   Choices:  - population  - society  - government  - science   A:
**Answer**
