Scientific method and variables, measuring!

Front

Which piece of equipment is NOT useful for transferring a liquid from one container to another? Options: beaker, funnel, petri dish, graduated cylinder.

Back

petri dish

Front

Which tool would give the most precise measurement for 25 mL of motor oil? Options: beaker, flask, test tube, graduated cylinder

Back

graduated cylinder

Front

Which piece of glassware is never used for making measurements?

Back

Test tube

Front

Alexander was studying the effect of playing rock music on plant growth. One of the plants was exposed to rock music for 24 hours a day for a period of 6 weeks. Data on the growth of the plant was collected at the end of each week and plotted in a graph. Based on the data, what would be the MOST reasonable measurement at the end of an 8 week period? Options: 2dm, 6dm, 8dm, 16dm

Back

8dm

Front

What is the "effect" in an experiment, represented by what the scientist measures and records?

Back

dependent variable

Front

What is the independent variable in the experiment?

Back

the type of solution the egg is placed in

Front

What is the dependent variable recorded by the group?

Back

change in mass of eggs

Front

Based on the data this group gathered, the most appropriate hypothesis would be

• "if an egg is placed in corn syrup, then it will gain weight"
• “If an egg is placed in vinegar overnight, then its shell will dissolve.”
• “If three eggs are each placed in three different solutions, then the egg in distilled water will lose weight.”
• “If an egg is placed in a pure water solution, then the egg will gain weight.”

Back

“If an egg is placed in a pure water solution, then the egg will gain weight.”

Front

In a hypothesis, the __________ variable is what is being tested, while the __________ variable is the one being measured in response.

Back

independent, dependent