C165 - Module 1 - Practice Questions with 100% Correct Answers

C165 - Module 1 - Practice Questions with 100% Correct Answers When a candle burns, its molecules consisting of hydrogen and carbon atoms combine with oxygen to produce carbon dioxide and water. The physical science that is BEST for dealing with how the light from the candle travels through space is - Answer - Physics The observational balloon is filled with helium and vented to the atmosphere. The height it reaches depends on the changes of the atmospheric pressure during the day and night cycle. The science BEST for studying this daily warming and cooling of the atmos phere is - Answer - Earth science Acidic soil water reacts with common rock -forming minerals to release ions and form new minerals. Which physical science is BEST for studying these processes? - Answer - Chemistry The science BEST for studying photosynthetic bacteria is - Answer - Life science Callisto is a moon of the planet Jupiter. Which of these terms BEST describes a research project in which telescopes are used to study ice sheets on Callisto? - Answer - an observational study What is usually the main advantage of being able to do a laboratory experiment rather than a field study if both investigations allow you to collect similar information? - Answer - It is possible to change only one variable at a time.