Unit 1: The Scientific Method

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Tags

NGSS.MS-LS1-5

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

A control is a group of subjects that

• does not receive the independent variable
• does not receive the dependent variable
• run the experiment
• increase the effect of the outside variables on the experiment

This variable is manipulated by the scientist.

• dependent variable

• independent variable

• data

• control group

Tags

NGSS.MS-PS1-2

Which of the following is an example of qualitative data?

• the color of the fur of an animal
• the mating behavior of an animal
• the average number of offspring that an organism has
• the description of an odor that a chemical produces

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

Tags

NGSS.MS-PS1-2

Thinking that it is going to rain when you see dark clouds in the sky is a (an)

• variable

• theory

• inference

• observation

Based on the graph, what temperature does this enzyme work best?

• 15 C

• 40 C

• 30 C

• 50 C

Tags

NGSS.MS-PS3-4

Which of the following best describes biology?

• The study of animals

• The study of living organisms

• The study of plants

• The study of properties and composition of matter

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control

Tags

NGSS.MS-LS1-5