Nature of Science Review Adv

What is the outcome (DEPENDENT) variable?

• plant height

• time in days

• sunflower

• daisy

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Identifying the Test (Independent) Variable and Outcome (Dependent) Variable in an experiment will help you interpret results. What is the difference between the Test (Independent) and the Outcome (Dependent) Variable in an experiment?

• Test Variable changes due to the outcome variable, the Outcome Variable is what is measured in an experiment.

• Test Variable changes due to the outcome variable, the Outcome Variable is what stays the same in an experiment.

• The Test Variable is what we change in an experiment, and the Outcome Variable is what changes as a result of that change.

• The Test Variable is what is measured in an experiment, and the Outcome Variable is what changes as a result of that change.

Tags

NGSS.MS-PS2-2

What is the difference between a scientific theory and a scientific law?

• A theory is a well-tested range of representations and a law is a concrete physical representation.

• A theory is a well-tested range of observations of why something works and a law is a well-tested concrete explanation how things work

• A theory is a well-tested range of observations of how something works and a law is a well-tested concrete explanation of why things work

• A theory is a hypothesis that is yet to be proven false and a law is a hypothesis that will always be true.

A constant is:

• something that is changed on purpose

• something that scientists do not yet understand

• something that stays the same

• something that changes because of something else

A student hypothesized that the amount of sunlight a sunflower plant receives determines the number of sunflower seeds the plant produces. In her experiment, the number of seeds produces is the______

• Test (independent) variable

• Outcome (dependent) Variable

• Control Variable

• Control group

Based on the data shown in the graph, which of the statements below mostly closely fits the data.

• Students performed worse on test #2 than they did test #9

• Students performed better on test#2 than they did on test#9

• Students performed better on test#1 than they did on test#7

• all of the above

Read the law of conservation of energy in the box below.

The total energy of an isolated system

is constant; energy may be changed from one form to another, but may not be

created nor destroyed.

Why is this a scientific law?

• because it explains a concept in science, and any topic in science can be turned into a scientific law

• because it describes a specific relationship under given conditions in the natural world

• because it can be controlled by human actions

• because it describes energy and how it transfers

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

Scientists often use visual or mathematical representations to investigate items that are very large, very small, or otherwise difficult to study.  What are these visual or mathematical representations called?

• experiments
• hypotheses
• models
• observations

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS1-2

NGSS.MS-PS1-1

NGSS.MS-PS4-1

These can often be represented mathematically and provide no explanation why a phenomenon occurs

• theory

• law

Tags

NGSS.HS-PS1-7

NGSS.HS-PS2-1

NGSS.HS-PS2-2

NGSS.HS-PS4-1

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

Tags

NGSS.HS-PS1-2