Honors Bio Ch1 Practice

How is this statement incorrect? "My theory is that if we test the strength of different leaves then the sugar maple will be the strongest because it has adapted to sustain more harsh conditions."

• it is missing a because statement

• this is a hypothesis not a theory. it hasn't been supported by large amounts of evidence or studied by the scientific community.

• this theory has all of the necessary elements. nothing is incorrect about this.

• all of these

What is wrong with this statement? "The theory of relativity has been proven correct by a vast abundance of supporting evidence."

• theories can't be "proven", but can be "supported"

• there is almost no evidence for this theory

• the term "hypothesis" should be used instead of the word "theory"

• nothing is wrong with this statement

All of these would be scientifically testable EXCEPT

• tracking rates of growth and development

• measurable physical characteristics

• supernatural occurrences

• none of these are scientifically testable

which kind of graph is best for displaying relationships? example: Carmen tracks her growth in inches each month.

• line graph

• bar graph

• pie chart

• all of these would work equally well

The independent variable is found on the _____ axis

• x

• y

• sometimes x and sometimes y

• none of these

What SHOULD the label be for the dependent variable on this graph?

• time

• level of comfort

Which is NOT one of the base units used to measure things in a science classroom?

• meter

• gram

• liter

• these are the three base units used to measure things scientifically. they will have different prefixes, but the base remains unchanged

Marsha wants to conduct an experiment to determine the effects of diet and exercise on athletic performance. She decides that the experiment group will eat a well balanced diet and exercise 2 hours per day and the control group will not eat only fast food and not exercise. What is one major problem with her proposal?

• she has too many independent variables. she won't know if the diet or the exercise is contributing more to the athletic performance she plans on measuring

• she doesn't have a control group at all

• athletic performance is not able to be a dependent variable because it cannot be measured scientifically

• all of these are equally problematic. she should just start over

Tags

NGSS.HS-ETS1-3

benedict's solution tests for the presence of glucose. if a greenish-yellow color is observed then the substance tests positive for glucose. this data is

• quantitative

• qualitative

which is NOT part of the scientific method

• observation

• hypothesis

• conclusion

• all of these are part of the scientific method

Tags

NGSS.HS-PS2-5