Question: Choose your answer.

Which example shows a new substance being formed?
My Answer: a candle burning

Question: Choose your answer.

An Italian scientist named Alessandro Volta invented the Voltaic pile in 1800. It was able to produce a steady electrical current. Based on this description, what is the modern equivalent of the Voltaic pile?
My Answer: a battery

Question: Choose your answer.

Eating leafy vegetables is important for human health. This is because leafy vegetables are a good source of which of the following?
My Answer: minerals

Question: Choose your answer.

Where is the first place a scientist should present new research data about the structure of a galaxy in order to receive the most appropriate review of the research?
My Answer:
a peer-reviewed science journal