Unit 1 (Lab Safety/Scientific Method)

Series of steps scientists follow to solve problems

• Scientific method
• Investigation methods
• Experiment guidelines
• Standard procedures

Using one or more of your senses to gather information is called

• observing
• classifying
• predicting
• inferring

Tags

NGSS.2-PS1-1

NGSS.K-LS1-1

The most important lab safety rule is

• Follow teacher's instructions and textbook directions exactly
• Always wear a lab apron
• Always wear safety goggles
• Design & conduct your own experiment without asking your teacher

What is the first thing you should do if a lab accident occurs?

• Run out of the room screaming
• Tell your teacher
• Find the emergency equipment
• Go to the nearest hospital

During an experiment, which factors must be controlled so that researchers can draw a logical conclusion from the experiment?

• variables
• inquiries
• theories
• operational definitions

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-2

The standard to which you compare the results of an experiment is called

• constant
• control group
• independent variable
• dependent variable

During an experiment, if you purposely change the temperature to test a hypothesis, the temp is called the

• independent variable
• operational variable
• dependent variable
• responding variable

Tags

NGSS.MS-PS3-4

Observations that deal with a number or amount are called

• manipulated observations
• operational observations
• qualitative observations
• quantitative observations

Observations that deal with descriptions that cannot be expressed in numbers are called

• quantitative observations
• qualitative observations
• manipulated observations
• operational observations

An explanation that ties together many hypotheses and explanations is called a(n)

• model
• concept
• theory
• investigation

Tags

NGSS.HS-PS4-3