Nature of Science

In a controlled experiment, which is the variable that the scientist changes?

• model
• independent variable
• dependent variable
• inference

What skill is a scientist using when she listens to the sounds that whales makes?

• making observations
• interpreting data
• making a hypothesis
• drawing conclusions

In which step of the scientific method do we want to use graphs

• make a hypothesis
• analyze data
• communicate results
• asking questions

An investigation was designed to determine the effect of ultraviolet light on mold spore growth. Two groups of mold spores were grown under identical conditions, except one group was exposed only to ultraviolet light, while the other group was grown in total darkness. In this investigation, the group of mold spores grown without receiving any ultraviolet light is known as the

• experimental group
• control group
• independent variable
• dependent variable

What is the volume of water displaced by the seeds?

• 15 mL
• 14 mL
• 5 mL
• 4 mL

Which is included in the definition of a scientific theory?

• a well tested explanation of natural events
• a statement of what most people believe to be true
• a description of natural events based on casual observations
• a conclusion agreed upon by people without experimentation

What is the correct order of the steps in the scientific method?

• Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.
• Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results
• Ask a question, make a hypothesis, test hypothesis, draw conclusions, analyze results, communicate results.
• Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results.

A scientist must measure 15 mL of glycerine. Which instrument will she most likely use?

• scale
• graduated cylinder
• ruler
• thermometer

If you wanted to know volume of water in a water bottle, you would use 

• milliliters
• liters
• grams
• kiloliters

The process of obtaining information by using the senses is called a/an

• observation
• scientific method
• inquiry
• conclusion