Science Semester Review

An ice cube is placed on a hot pan that is sitting on the counter top. How did the thermal energy move?

• the heat will move from the ice cube to the pan

• the coldness will move from the pan to the ice cube

• the heat will travel from the pan to the ice cube

• the coldness will move from the ice cube to the pan

Which of the follow energy resources would be the most environmentally friendly way to supplement or add to the electrical power system?

• Diesel powered generator outside the building

• Solar panels on the roof

• Hydroelectric power from a school pond

• Nuclear power plant in the utility room

Which of the following is the symbol for chlorine?

• Ce

• Ch

• C

• Cl

Which of the following is a compound?

• Fe

• Co

• H

• CO

During a science class investigation, a teacher places a small amount of sugar in a beaker and heats it over a candle. Which of the following would be the best evidence that a change in the chemical properties of the sugar has taken place?

• The sugar turns to liquid

• The sugar get larger

• the sugar turns black

• The sugar gets hotter

Luster, ductility, conductivity, and ____________are characteristics of Metal. Which characteristic goes in the blank

• Chemical composition

• oxidation

• malleability

• reactivity

Feeling the heat from a campfire is what method of energy transfer?

• condensation

• conduction

• radiation

• convection

When you have a beaker of baking soda and you add some pickle juice to the baking soda and observe bubbling and fizzing. What can you conclude?

• only physical change happened

• a chemical reaction produced a solid

• a chemical reaction produced a gas

• no chemical reaction took place

This picture demonstrates methods of energy transfer. What is the correct process that is occurring?

• A- convection

  b.-conduction

  c- radiation

• a - conduction

  b- convection

  c - radiation

• a- radiation

  b- convection

  c - conduction

• a - Radiation

  b -Conduction

  c- convection

How is thermal energy transferred in this scenario?

• Thermal energy moves from a cooler object to a warmer object until all the substances are different temperatures

• Thermal energy moves from a warmer object to a cooler object until all the substances are different temperatures.

• Thermal energy moves from a warmer object to a cooler object until all the substances are the same temperature.

• Thermal energy moves from a cooler object to a warmer object until all the substances are the same temperature.