The scientific method Review

Data that are qualitative are always-

• described in words
• represented in numbers
• repeated for verification
• the most accurate type of data

A small, living aquatic organism would best be observed using which of the following pieces of equipment?

• compound light microscope
• electronic balance
• scanning electron microscope
• centrifuge

"The insect in Container B has six appendages" is an example of what type of scientific observation?

• quanitative
• qualitative
• inference
• hypothesis

A scientist is conducting research on mealworms. Which of the following pieces of equipment should be used by the scientist to determine the mass of each mealworm?

• electronic balance
• ruler
• graduated cylinder
• beaker

What is NOT an example of qualitative data?

• the average high daily temperature for the month of july
• the names of chemicals found in breakfast cereal
• the zip codes in which each high school student resides
• types of shoes worn by pedestrians on a city street 

A hypothesis is-

• a possible explanation of an observation that can be tested
• a proven statement
• a conclusive statement
• a definite answer to a possible problem

You suggest that the absence of water could prevent the growth of bread mold. This is-

• a hypothesis
• a conclusion
• an experiment
• an analysis

Tags

NGSS.MS-LS1-5

The purpose of a controlled experiment is to allow a scientist to isolate and test-

• a single variable
• several variables
• many data
• a conclusion

How does the control group differ from an experimental group in a scientific experiment?

• the control group does not contain the experimental data, whereas the experimental group does
• the control group does not contain the experimental variable, whereas the experimental group does not
• the control group is not tested or measured
• the control group contains more than one experimental variable

The variable that is measured in the experiment is-

• the dependent variable
• the independent variable
• the control variable
• the hypothetical variable