Test Review

What causes your skin to feel warm when it is in the sun on a summer day?

• Particles in the atmosphere reflect energy from the Sun downward.

• Hot particles from the Sun still carry some heat when they reach your skin.

• The solar wind carries heated air from the Sun's atmosphere to the Earth's surface.

• The Sun radiates energy that passes through space and the atmosphere to your skin.

Tags

NGSS.MS-PS1-4

Although the heat source is at the bottom of the beaker, all of the water is the same temperature. What keeps the water at the top of the beaker the same temperature as that of the bottom?

• The heat from the burner radiates through the liquid and causes even heating.

• Evaporation heats the water at the top and the flame heats the water at the bottom.

• The walls of the beaker reflect heat toward the center, so the water heats evenly.

• Heated water molecules and steam rise in the beaker, carrying heat by convection.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The area in front of a fire feels warm on a cold evening. What are the processes that cause the person in front of the fire to feel warm?

• A. conduction and convection

• B. radiation and conduction

• C. radiation and convection

• D. radiation, convection, and conduction

What causes the circulation of air?

• Air in the atmosphere is heated by the Sun and sinks to ground.

• The ground is heated by the Sun and then heats the air, causing it to rise.

• Air loses heat to the ground and then rises upward to obtain more energy.

• The Sun heats the clouds which forces the cooler air to move away and sink.

Tags

NGSS.MS-ESS2-6

Manuel was having trouble opening a jar of pickles. His father told Manuel to hold the metal lid of the jar under running hot water for a few seconds, then try again. The the lid opened easily. What is the most likely reason Manuel's father suggested using hot water to loosen the lid?

• Glass contracts when it is heated.

• 
  Metals expand when they are heated.

• Metals are easier to grip when they are warm.

• Hot water reduces friction between metal and glass.

Which object is the best conductor?

• metal wire

• glass rod

• wooden cube

• rubber ball

On a warm sunny day, Ingrid left a chocolate bar on a picnic table at the playground while she went to play. When she returned, it had melted. What best explains why the chocolate bar melted?

• Cold is absorbed by the air.

• Cold is released by the chocolate.

• Heat is absorbed by the chocolate.

• 
  Heat is released by the chocolate.

Tags

NGSS.MS-PS1-4

Why is copper often used to line the bottom of cookware?

• Copper cools quickly.

• Copper is inexpensive.

• Copper is a good insulator.

• Copper is a good conductor.

Tags

NGSS.MS-PS3-3

Heat energy can be transferred outside from homes through the walls, floor, roof and windows. What will reduce the heat loss from a house?

• 
  conduction 

• convection

• radiation

• insulation

Tags

NGSS.MS-PS3-3

Which best explains why it is a bad idea to use metal chairs for a party on a hot sunny day?

• The metal chairs melt slowly.

• The metal chairs remain cold.

• Metal chairs are very heavy

• Metal chairs get hot quickly.

Tags

NGSS.MS-PS3-4