Nature of Science QTR Review

Indira tested whether a tomato plant grew faster in part shade or full sun. The table below shows the height of each plant after 0, 10, 20, and 30 days.

What is ONE CONCLUSION Indira can draw from her data?

• The tomato plants grew taller in full sun than they did in part shade.

• All plants grow taller in full sun than they do in part shade.

• Tomato plants grown in full sun will produce more tomatoes.

• Tomato plants need to be placed in full sun in order to grow.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A science class investigates how far a machine can throw a ball. The data table below shows the data they collect in four trials.

Based on the class’s data, how can they improve the accuracy of the investigation?

• Erase the data for trial 4 from the data.

• Use a different ball.

• Do more trials.

• Change the settings on the ball-throwing machine.

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS2-2

A student is studying the reactivity of different metals in hydrochloric acid (HCl). The chart below was recorded after using each of the metals in different temperatures of the acid.

Which of these is the dependent variable in these tests?

• bubbles

• cold HCl

• copper

• warm HCl

Tags

NGSS.MS-PS1-2

Ellie’s class is studying tide pools and starfish. They made the following prediction: If the water temperature in a tide pool increases, then the starfish population decreases. Then, they recorded the data.

Compare the results of the experiment to the class’s prediction. What should they do next?

• Change the prediction to match the results.

• Change the data to fit the prediction.

• Collect data at several other tide pools.

• Change the procedure to obtain the desired result.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A researcher finds that data from her experiment do not support her hypothesis. If the researcher repeats the experiment and gets the same results what should she do next?

• Do more trials using the same procedure

• Change the data to support the hypothesis.

• Change the procedure to obtain the desired result.

• Form a new hypothesis and conduct experiments to investigate it.

Tags

NGSS.MS-ETS1-4

Mrs. Penta created the graph to show the results of an investigation.

What type of investigation did she conduct?

• modeling

• a field study

• an experiment

• a computer simulation

Tags

NGSS.MS-PS1-4

Fevers are one part of the body’s response to infection. Which of the following is NOT empirical evidence for this explanation?

• intuition

• measurements

• detailed observations

• data resulting from an experiment

Darren conducted an experiment on the effect of different types of drinks on athletic performance. He gave milk to one group of runners, water to another group of runners, and a low-carbohydrate sports drink to a third group of runners. He timed how long it took each group to run 100 meters and then averaged each group’s times. He repeated the experiment three times and compiled his results in the table.

Which of the following reasons best explains why Darren repeated his experiment three times?

• He was trying to obtain different experimental results.

• He did not perform the experiment correctly the first two times.

• He repeated his experiment to make his results more reliable.

• He knew that all experiments should be repeated three times.

Nina designed and carried out an experiment about light and plant growth. She displayed her results in the graph shown.

With the teacher’s approval, Robert chose to perform the exact same experiment. What was Robert trying to accomplish?

With the teacher’s approval, Robert chose to perform the exact same experiment. What was Robert trying to accomplish?

• verify his results

• cheat on a project

• design an experiment

• replicate an experiment

Tags

NGSS.MS-LS1-5

The data table shows the results of an experiment investigating the effects of different fertilizers on plant growth. Each plant was grown in the same size pot with the same amount of sunlight and water. Each fertilizer was tested on four groups of plants. The only difference between the trials was the type of fertilizer. Which type of scientific investigation is this?

• field study

• modeling

• simulation

• controlled experiment

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1