Science ACT Terms

What is a hypothesis?

• Something that is not changed throughout the experiment

• An educated guess used to predict the outcome of an experiment

• A statement made after an experiment has been performed

• A positive relationship that shows as one variable increases the other decreases

Answer explanation

What is quantitative data collection?

• When two variables or factors in an experiment move in the same direction

• A method that is based on observed, non-numerical factors.

• A method that involves using numerical values or measured quantities

• A data point that does not fit into a clearly established trend

Answer explanation

Tags

NGSS.MS-PS2-2

What is qualitative data collection?

• A method that is based on non-numerical data

• A method based on numerical data

• An informed decision about future results based on trends

• Entering numbers into a database

What is a control variable?

• Something that is changed or altered specifically by the experimenter with the intent to see how it affects other variables.

• Conclusion of the experiment

• An educated guess based on the researcher's knowledge of the topic

• Something that is intentionally not changed throughout an experiment, it is held constant

What is an independent variable?

• A variable that is not changed or altered and is held constant

• A variable that is changed or altered by the experiment with the intent to see how it may affect other variables being measured or observed

• General direction of the data points in a graph or chart

• An observation that as one thing increases the other decreases

Tags

NGSS.MS-PS3-4

What is a dependent variable?

• A general direction of data points in a graph or chart

• The variable that does not have anything changed

• Is changed or altered specifically by the experimenter with the intention of seeing how it affects other variables

• Something that is being observed that is dependent on the independent variable

Tags

NGSS.MS-PS2-2

What is a trend?

• The group that has some variable changed

• When you look at data and it moves in a specific direction.

• When you make an informed prediction about future results

• When a data point does not fit clearly into a pattern of data

Tags

NGSS.MS-LS4-1

NGSS.MS-PS3-1

What is a direct relationship between two variables in an experiment?

• When one variable decreases in values and the other variable increases in values

• Cause and Effect

• When one variable increases in values and the other variable decreases in values

• When the variables move in the same direction

Tags

NGSS.MS-PS3-4

What is an indirect relationship?

• Cause and Effect

• One variable will increase and the other variable will decrease

• Both variables move in the same direction

• A variable being observed

What is extrapolation?

• Cause and Effect

• General direction of data points in a graph or chart

• Making a prediction about future results based on trends in data you are given

• When one variable increases another variable decreases

Tags

NGSS.HS-ESS3-5