If the same amount of ice is added to 4 different jars. In which jar will the ice melt the fastest?

• Cold water jar
• Hot water jar
• no water 
• warm water

The diagram shows a metal strip connected by wires to a battery & light bulb. Which property of metal is being tested in the diagram shown?

• Density
• Luster
• Elasticity
• Conductivity

An example of the transfer of heat in the atmosphere by winds that circulate between the equator & the poles. 

• Conduction
• Radiation
• Insulation
• Convection

 Ice water is poured into four cups made of different materials. Which cup will feel the coldest when you pick it up? 

• Foam
• Glass
• Metal
• Plastic

Which statement describes the transfer of energy when an ice cube is placed in a cup of hot tea? 
 
 
 

• Heat flows from the tea to the ice. 
• Cold flows from the ice to the tea. 
• Cold flows from the ice, and heat flows from the tea. 
• D. Heat flows simultaneously between the ice and the tea. 

Why can you see someone clearly through a clear glass window but not through a frosted glass window? 
 
 
 

• A. Clear glass reflects light, but frosted glass absorbs light. 
• Clear glass transmits light, but frosted glass scatters light. 
• C. Clear glass transmits some light, but frosted glass absorbs all light. 
• D. Clear glass scatters some light, but frosted glass transmits all light. 

Which of the following has the ability to change the state of matter? 

• heat
• wind
• light
• sound

When a black brick is placed in direct sunlight, its temperature rises.This rise in temperature best demonstrates which of the following?  
 
 
 

• The weight of the brick increases over time. 
• The Sun exerts a magnetic force on the brick. 
• C. Energy from the Sun is transferred by waves to the brick. 
•   D.     Mass from the Sun is transferred to the brick as heat. 

In an investigation, water in a beaker is placed on a hot plate. As the water is heated, the cooler, denser water at the surface sinks and pushes the warmer water to the top. What is causing this process? 
 
 
 
   

• phase changes 
• convection currents 
• electromagnetic radiation 
• energy transfer by conduction

The picture shows a spoon being used to stir a pan of hot soup.
 Which of the following spoon handles would get hot the fastest? 
 
 

• a metal spoon 
• a plastic spoon 
•  a rubber spoon 
• a wooden spoon