DCP

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• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which is the CORRECT formula for DENSITY?

• DENSITY= MASS/ VOLUME

• DENSITY= MASS x VOLUME

• DENSITY= VOLUME/ MASS

• DENSITY= VOLUME x MASS

Click on the image to see the question.

• a

• b

• c

• d

Tags

NGSS.MS-PS1-1

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WHICH OF THE FOLLOWING IS A CHEMICAL CHANGE?

• Reduction in size of the food particles as food is chewed.

• The movement of food to the stomach after food is swallowed.

• The breakdown of molecules of food by enzymes and acid in the stomach.

• None of the above

Tags

NGSS.MS-PS1-2

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Type the letter of your answer choice below.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Scientist suggest that the movement of Earth's liquid iron core results in electrical currents. These currents would then result in Earth's magnetic field. Recent satellite data suggest that the strength of Earth's magnetic field has weakened by about 3.5 percent in some areas. In other areas, Earth's magnetic field strength has increased by about 2 percent. Which statement best explains the differences in Earth's magnetic field strength based on the movement of Earth's liquid iron core?

• The movement of Earth's liquid iron core stopped in both locations.

• The movement of Earth's liquid iron core changes direction in some locations.

• The movement of Earth's liquid iron core is the same in all locations

• The movement of Earth's liquid iron core increased speed in both locations.

Tags

NGSS.MS-PS2-5

Based on Figure 2 and Figure 3, A magnetic compass needle is able to detect the direction of Earth's magnetic North Pole. Over hundreds of thousands of years, the direction in which a compass needle points would ________.

• stay the same

• change

Based on Figure 2 and Figure 3, During a normal polarity period, a compass needle points mostly in the direction of the ________.

• geographic North Pole

• Equator

• geographic South Pole

Scientist are planning an investigation to collect evidence to help predict future magnetic pole reversals of Earth's magnetic field. Using information from figure 3, describe how scientists can collect data on changes in Earth's magnetic poles and explain how the data can be used to predict future magnetic pole reversals.

Tags

NGSS.MS-ESS2-3