Question

Which choice best explains why a funnel and an aquarium are scientific tools that can be used to control things?

a) A scientist uses a funnel to control liquids that are too hot to touch. A scientist uses an aquarium to store liquids that are too hot to touch.

b) A scientist uses a funnel to control liquid being added to an aquarium. By using a funnel, the outside of an aquarium remains clean and dry.

c) A scientist uses a funnel to control the movement of small animals such as insects. A scientist uses an aquarium to control the movement of larger animals such as hamsters.

d) A scientist uses a funnel to control a liquid by pouring it carefully into a graduated cylinder or beaker. A scientist uses an aquarium to control the environment needed to keep an animal safe during an investigation.

Answer 1

Choice (d) is the best explanation as it properly identifies the use of a funnel for guiding liquids precisely and an aquarium for maintaining a controlled environment for living organisms during scientific experiments.

Step-by-step explanation:

The choice that best explains why a funnel and an aquarium are scientific tools that can be used to control things is choice (d): A scientist uses a funnel to control a liquid by pouring it carefully into a graduated cylinder or beaker. A scientist uses an aquarium to control the environment needed to keep an animal safe during an investigation. This explanation aligns with the use of a funnel in preparative chemistry for guiding liquids into desired containers, and aligns with the practical uses of an aquarium in biological research, for example, to maintain specific environmental conditions for life forms such as fish during an experiment.