Science Final Test

A student wants to test the effect of fertilizer on plant growth. Why should she perform her experiment on multiple plants instead of just one?

• She shouldn't use multiple plants; one is enough.

• Using many repeated trials shows that her results are reproducible.

• Using repeated trials shows no one else can produce her results.

• Using many trials will enable her to see whether the sunlight has any effect.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

What term best describes the following statement?
"Any two objects exert a gravitational force of attraction on each other."

• an observation

• a theory

• a law

• a hypothesis

A student wants to find out if plants grow better in the sun or shade.  What is the independent variable in his experiment?

• The size of the plants

• The amount of water

• The temperature of the room

• The amount of sunlight

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

During what step of the engineering process would a scientist most likely go to the library?

• defining the problem

• conducting research

• testing and evaluating

• communicating results

What is empirical evidence?

• your opinion

• observations and measurements

• facts

• beliefs

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-4

The findings of experiments are generally not  accepted until they are...

• Modeled

• Proven

• Replicated

• Solved

The most reliable scientific information comes from...

• reporters

• scientists

• companies

• librarians

Scientific investigations that involve testing a single variable are called...

• models

• theories

• experiments

• laws

Tags

NGSS.MS-PS1-2

The International System of Units (SI) is the standard system of measurement is science.
The SI unit for mass is the

• kelvin

• newton

• kilogram

• second

Why do scientists use data tables?

• because they are told to

• because it helps organize data

• because it goes on the form

• because it helps in laws