Iowa Science

Which plant feature shown in the model allows the shade plants to better convert sunlight during photosynthesis in shaded areas?

• fewer leaves

• vertical leaf position

• larger chloroplasts

• smaller plant cells

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

Which moon phase belongs in box #1?

• Phase W

• Phase X

• Phase Y

• Phase Z

Tags

NGSS.MS-ESS1-1

Which moon phase belongs in box #2?

• Phase W

• Phase X

• Phase Y

• Phase Z

Tags

NGSS.MS-ESS1-1

The students decide to investigate how the mass of each marble affects its kinetic energy. The students will roll each marble down the first hill on the track. They will then compare the results for the kinetic energy of both the ceramic marble and the steel marble. Which figure best compares the kinetic energy of each marble when the marbles roll down the hill on the track?

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• 
• 
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Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

The speed of the marble at point L will be _______ as the speed of the marble at point M.

• faster than

• slower than

• the same as

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

For the 3 points measured on the track, the marble will have the most Kinetic energy at ______.

• point L

• point M

• point N

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

For the 3 points measured on the track, the marble will have the least Kinetic energy at ______.

• point L

• point M

• point N

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Which figure best shows how the potential energy of a marble changes as the marble travels along the track?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-2

Based on Figure 2, at which points along the marble track is the potential energy of the marble increasing? Select 2 correct answers

• point 1

• point 2

• point 3

• point 4

• point 5

Tags

NGSS.MS-PS3-2

The students determine that the total energy of the marble decreases slightly as the marble travels along the track. Which statement describes the most likely cause of this decrease in total energy?

• Some of the marble's energy is destroyed by the wooden blocks as the marble rolls along the track.

• Some of the marble's energy is transferred to the surface of the track as the marble rolls along the track.

• Some of the marble's energy is transferred to the wooden blocks as the marble rolls along the track.

• Some of the marble's energy is destroyed by the surface of the track as the marble rolls along the track.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5