2.2-Changes of State - 1

When does snow melt?

• When it evaporates

• When it turns into a gas

• When it becomes liquid water

• When it freezes

What can happen to a puddle of rain in cold weather?

• It evaporates

• It turns into ice

• It boils

• It expands

What does water turn into when it boils?

• Ice

• Liquid water

• Steam

• Solid

What is thermal energy?

• The energy of motion

• The energy that is stored

• The total kinetic and potential energy of all the particles in an object

• The energy of light

What is kinetic energy?

• The energy of motion

• The energy that is stored

• The total kinetic and potential energy of all the particles in an object

• The energy of sound

What is potential energy?

• The energy of motion

• The energy that is stored

• The total kinetic and potential energy of all the particles in an object

• The energy of electricity

How can you increase the thermal energy of a substance?

• By freezing it

• By cooling it down

• By heating it

• By isolating it

What does temperature measure?

• The size of an object

• The mass of an object

• The average kinetic energy of the particles in an object

• The color of an object

What instrument is used to measure temperature in degrees?

• Barometer

• Thermos

• Thermometer

• Hygrometer

Which temperature scales are commonly used?

• Barometer

• Celsius, Fahrenheit and Kelvin

• Measuring tape