Biology Unit 1

A hypothesis that is supported many times may become a(n)

• theory.

• hypothesis.

• conclusion.

• independent variable.

What is a suggested explanation based on evidence that can be tested by observation or experimentation?

• conclusion.

• theory.

• hypothesis.

• independent variable.

A prediction that can be tested is a 

• conclusion.

• hypothesis.

• theory

• independent variable.

Tags

NGSS.MS-PS1-2

What is the part of an experiment that can be changed?

• independent variable.

• conclusion.

• theory

• hypothesis.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

In controlled experiments:

• All critical variables are manipulated

• One variable is manipulated while others are held constant

• All variables are independent of each other

• All variables are held constant

Tags

NGSS.MS-PS2-2

Which step is generally first in a scientific investigation?

• making observations

• making a hypothesis

• performing the experiment

• drawing conclusions