Geoscience Brain Refresher 2020

Which of these is true about a hypothesis?

• It must be testable.

• It must be approved by someone else.

• It must be correct.

• It is not based on research.

Tags

NGSS.MS-LS1-5

NGSS.MS-PS2-2

If you were trying to measure the effect of sunlight on plant growth, what would be your control in the experiment?

• Amount of water given to each plant

• Type of soil

• Type of plant used

• All of the above

Tags

NGSS.MS-LS1-5

If you were trying to measure the effect of sunlight on plant growth, what would be your independent variable?

• Type of plant

• Amount of sunlight

• Soil

• Amount of water given to each plant per day

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

If you were trying to measure the effect of sunlight on plant growth, what would be your dependent variable?

• Type of plant

• Plant height

• Number of leaves on each plant

• Color of the leaves after three days

Tags

NGSS.MS-LS1-5

What is the scientific term for a description, representation, or imitation of an object, system, process, or concept?

• Example

• Experiment

• Hypothesis

• Model

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-4

NGSS.MS-LS1-2

NGSS.MS-PS1-1

Why is peer review of experimental results important?

• It prevents people from feeling left out.

• It allows scientists to show off their work.

• It is a filer against publishing incorrect information.

• There is no need for peer review.

This is a valid hypothesis: Will practicing make my free throw percentage increase?

• True

• False

This is a valid hypothesis: Practicing for ten minutes per day will increase my free throw percentage by 15% over two weeks.

• True

• False

You're trying to determine how listening to music while taking a quiz affects your score. What would NOT be a control?

• Type of music

• Length of quiz

• Your score

• How much sleep you get the night before

This is a valid hypothesis: Listening to music for half the allotted quiz time will result in my highest score.

• True

• False