Chemistry Unit 6

During evaporation of liquids, energy is________________.

• released

• absorbed

• none of the above

• all of the above

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NGSS.MS-PS1-4

NGSS.MS-PS3-5

Diagram B represents a/an__________ reaction.

• Exothermic

• Thermonuetral

• Endothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The core of the Earth is made up almost completely of which element?

• Iron

• Aluminum

• Sulfur

• Calcium

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NGSS.MS-ESS2-1

Urban areas tend to be warmer than their surrounding rural areas. What is this effect known as?

• Urban convection current effect

• Urban thermal change effect

• Urban canopy layer effect

• Urban heat island effect.

Which of the following processes drives the motion of tectonic plates?

• Radiation

• Conduction

• Convection

• absorbtion

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NGSS.MS-ESS2-3

Which layer is composed of solid rock and the tectonic plates?

• Layer W

• Layer X

• Layer Y

• Layer Z

Geologists learn about the Earth's interior by studying_______________ which travel ____________ the earth

Which of the following beaker diagrams accurately displays the path of the convection currents that develop once the Bunsen burner is ignited?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The diagram shows a crystal being heated in a beaker of water. The crystal releases a dye which shows how the water circulates around the beaker. What is happening to cause the water above the crystal to rise?

• The water contracts and its density decreases.

• The water contracts and its density increases

• The water expands and its density decreases.

• The water expands and its density increases.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Using what you know about how thermal energy moves within a system, choose the answer that aligns with your thinking about what the temperature will be in the beaker where the two samples of water were mixed.

• Both sample of the water gained energy and were added together, the new temperature will be close to the sum of the original temperatures of about 140C.

• Without having actual data, there is not enough information to be able to predict the new temperature.

• When water samples mix, the energy will be equally distributed, the new temperature will be 70C.

• Both water samples will be 250C.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5