You suggest that the presence of water could accelerate the growth of bread mold. This is a/an _____.

• conclusion

• analysis

• hypothesis

• experiment

Tags

NGSS.MS-LS1-5

An instrument used to separate cell parts according to density is the ____.

• electron microscope

• blender

• compound light microscope

• centrifuge

When enough experimental data support a hypothesis, the hypothesis becomes a/an ____.

• fact

• inference

• conclusion

• theory

Tags

NGSS.MS-PS1-2

Which is NOT a unit of measurement in the metric system?

• gram

• inch

• meter

• liter

What is the term for the area of Earth where living things exist?

• community

• population

• biosphere

• environment

Which of the following characteristics of living things best explains why birds fly south for the winter?

• Living things maintain internal balance.

• Living things respond to their environment.

• Living things are based on a universal genetic code.

• Living things are made up of units called cells.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Information gathered from observing a plant grow 3 cm over a two-week time period results in ____.

• data

• variables

• inferences

• hypotheses

To observe a small, living organism, a scientist might use a/an ____.

• electronic balance

• compound light microscope

• TEM

• SEM

What is the term for a group of organisms of one type living in the same place?

• population

• environment

• ecosystem

• biosphere

Which of the following variables present in Redi's experiment on spontaneous generation is NOT a controlled variable?

• gauze covering that keeps flies away from meat

• types of jars used

• types of meat used

• temperature at which the jars were stored

Tags

NGSS.MS-ETS1-2