Unit 1 - The Scientific Method

Which of the following is a quantitative observation?

• The dog is small.

• The dog has two legs.

• The dog is cute.

• The dog is fuzzy.

Using the graph, how many adults do NOT carpool to work?

• 50

• 160

• 130

• 15

An experiment was designed to investigate the effect of caffeine on the heartbeat of puppies. Two litters of black Labrador puppies were used. These puppies were the same age, gender, and size. Litter A was given caffeine and Litter B was not. The heartbeat of the puppies was measured every hour for five hours. What is the dependent variable of this experiment?

• heartbeat of the puppies

• whether the puppies got caffeine or not

• type of puppies

• age of puppies

The "cause" of the experiment, what we are purposefully manipulating or changing, is the __________.

• control group

• constant

• independent variable

• dependent variable

The best type of graph to use to show the percentages of a whole is a __________.

• bar graph

• line graph

• circle graph

• scatter graph

Method for appropriately smelling unknown substances in lab.

• observation

• theory

• inference

• waft

an explanation of why things or events happen based on knowledge gained from many observations and investigations

• theory

• law

• observation

• inference

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2

subjective; based on opinions or assumptions

• observation

• inference

• theory

• law

statement about how things happen in nature that seems to be true all the time

• observation

• theory

• law

• inference

objective; based on information gathered using the five senses

• observation

• theory

• law

• inference

Tags

NGSS.MS-LS1-8