Exploring Graphs

What is the main purpose of a bar graph in science?

• To show how something changes over time

• To compare quantities of different categories

• To display the parts of a whole

• To show the relationship between two variables

Which axis on a bar graph usually shows the categories being compared?

• X-axis (horizontal)

• Y-axis (vertical)

• Z-axis (diagonal)

• None of the above

What does the height of a bar in a bar graph represent?

• The name of the category

• The value or amount for that category

• The number of bars in the graph

• The color of the bar

A student wants to compare the number of books read by students in four different classes. Which type of graph should they use?

• Line graph

• Bar graph

• Pie chart

• Scatter plot

A bar graph shows the number of students who prefer different fruits: Apples (10), Bananas (15), Oranges (5), and Grapes (20). Which fruit is the least popular?

• Apples

• Bananas

• Oranges

• Grapes

A student is creating a bar graph to show the number of hours spent on homework each day for a week. How should they decide the scale for the y-axis?

• Use any random numbers

• Choose a scale that covers the highest number of hours recorded

• Use the same number for every line

• Only label the first and last lines

Tags

NGSS.MS-PS3-1

What is qualitative data?

• Qualitative data is numerical information that can be measured.
• Qualitative data is data that can be represented in graphs and charts.
• Qualitative data is information that is always in the form of percentages.
• Qualitative data is non-numeric information that describes qualities or characteristics.

What is quantitative data?

• numerical information that can be measured and analyzed.

• Quantitative data is only about opinions.
• Quantitative data cannot be analyzed.
• Qualitative data is always numerical.

Define Independent Variable.

• An independent variable is the outcome measured in a study.
• An independent variable is always constant throughout the experiment.
• the variable that is changed or controlled in a scientific experiment.

Tags

NGSS.MS-PS2-2

Define dependent variable.

• A dependent variable is the outcome variable that researchers measure in an experiment.
• A dependent variable is the variable that researchers manipulate in an experiment.
• A dependent variable is the hypothesis that researchers test in an experiment.
• A dependent variable is a constant that does not change during an experiment.

Tags

NGSS.MS-PS1-2