Iowa Science Prep

According to our recent study, water does not shoot further from a bottle when mixed with detergent or coke.

• I agree with the hypothesis.

• I disagree with this hypothesis.

Tags

NGSS.MS-PS1-2

This double line graph for rainfall in two cities shows what pattern?

• Rain is steady all year.

• It is rainier in the summer months than in winter.

• It is the rainiest in winter.

• There is no rain.  Both cities are dry year round.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

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-LS1-6

Which moon phase belongs in box #1?

• 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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Tags

NGSS.MS-PS3-1

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

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• 
• 

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

The students want to see how changes to the design of the marble track will affect the energy of the marble. Part A One student wants to increase the potential energy of the marble at the starting position. Explain one way the students can adjust the track to increase the marble's potential energy. Describe the dimensions of any materials used to adjust the track. Which is the best description?

• Replace block Y and use a block with a greater height then block Y

• Replace block X and use a block with a greater height then block X

• Replace block Z and use a block with a greater height then block Z

• Replace block X and use a block with a lower height then block X

Tags

NGSS.MS-PS3-2

NGSS.MS-ETS1-1

The students want to see how changes to the design of the marble track will affect the energy of the marble. Part A One student wants to increase the potential energy of the marble at the starting position. Explain one way the students can adjust the track to increase the marble's potential energy. Explain why the adjustment to the track would increase the marble's potential energy.

• Potential energy will increase with the higher new block replacing block Y

• Potential energy will increase with the higher new block replacing block Z

• Potential energy will increase with the higher new block replacing block X

Tags

NGSS.MS-PS3-2

NGSS.MS-ETS1-4