Midterm Review

Which of the following represents a testable hypothesis?

• Adding fertilizer will make plants grow taller.

• Plants are beautiful.

• Fertilizer is good.

• Tall plants are better.

Tags

NGSS.MS-LS1-5

Liam is conducting an experiment to understand how different fertilizers affect plant growth. What is the purpose of conducting this experiment in the scientific method?

• To prove a hypothesis

• To create a theory

• To write a report

• To make a guess

Tags

NGSS.MS-ETS1-1

In a line graph, which axis typically represents the independent variable?

• The x-axis

• The y-axis

• The z-axis

• The w-axis

What type of correlation does a line graph show if the points form a straight-line slope downward from left to right?

• Negative correlation

• Positive correlation

• No correlation

• Curved correlation

Jackson, a scientist, reports a new discovery based on experimental results. If the experimental results are valid, then scientists in other laboratories should be able to

• repeat the same experiment and obtain the same results.

• create a new hypothesis.

• change the results.

• ignore the results.

Tags

NGSS.HS-PS2-5

Jose and Rohan are working on a science project and need to analyze their experimental results. Which tool(s) should they use to help recognize patterns?

• Graphing and tables

• Writing and reading

• Drawing and painting

• Singing and dancing

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS1-2

NGSS.MS-PS3-1

Which of the following describes a pattern or an event in nature that is always true?

• Scientific law

• Scientific theory

• Hypothesis

• Guess

Tags

NGSS.MS-PS2-4

Which of the following is a variable in an experiment that does not change?

• Constant

• Variable

• Dependent

• Independent

The variable being measured is the ____.

• dependent variable

• independent variable

• constant

• control

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

The variable that is changed by the investigator in an experiment is called the ___.

• independent variable

• dependent variable

• constant

• control