9 Weeks Exam - Nature of Science

A gardener collected data on fruit trees and recorded it in the chart below.

If she wanted to determine why certain brands of fertilizer caused fruit to grow larger, which would be the best hypothesis to use?

• If more fertilizer is used on fruit trees, then the fruits will be larger.

• If solid fertilizers work better than liquids, then the fruit trees fertilized with solid fertilizer will yield larger fruits.

• If fertilizers are successful, then a farmer's fruit will be larger.

• If liquid fertilizers are absorbed by plants better than solid fertilizers, then the fruit fertilized with liquid fertilizer will be larger.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Why do scientists often use methods such as planning, designing, collecting data, analyzing, drawing meaningful interpretation and reporting of the research findings when sharing data?

• To make the data appear more impressive and favorable

• To summarize the data and draw meaningful conclusions from it.

• To collect a larger volume of data without conducting additional experiments.

• To alter the experiment’s results to fit the hypothesis.

Tags

NGSS.MS-ETS1-3

Imagine you are conducting an experiment to see how different types of music affect students' concentration while studying.

In this experiment, which of the following would be the independent variable?

• The test scores of the students after studying.

• The total time each student spends studying.

• The number of students participating in the experiment.

• The type of music played during the study sessions.

The variable that is chosen to be tested by the scientist (changes it purposefully)

• Dependent variable

• Control Variable

• Independent Variable

• Calculated Variable

Four students graphed the data below (orange = carrot, green = bell pepper). Which graph is correct?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

When labeling your X and Y axis you must include units that you are using to measure.

• True

• False

Tags

NGSS.MS-PS3-1

A scientist conducted an experiment to determine how different temperatures affect the growth of a certain type of plant. The plants were kept in three different temperature environments: 15°C, 20°C, and 25°C.

The growth of each plant was measured after four weeks. Which temperature resulted in the greatest average plant height?

• 15°C

• 20°C

• 25°C

Tags

NGSS.MS-LS1-5

A scientist conducted an experiment to determine how different temperatures affect the growth of a certain type of plant. The plants were kept in three different temperature environments: 15°C, 20°C, and 25°C.

Based on the table, what is the difference in average height between plants at 15°C and 25°C?

• 10

• 22

• 12

• 18

Tags

NGSS.MS-LS1-5

When titling your graph, the title should be arranged like which of the following?

• The name of the scientist who is doing the experiment

• Independent variable vs the Dependent variable

• The Y Axis variable only

• The dependent variable vs. the Independent variable

If you were to graph this data, which temperature range would be represented on the x-axis?

• Plant Height

• Temperature

• Average Height

• Number of Plants