Vocabulary
When something gets bigger because of heat
Expansion
A ___________ allows heat to move through easily.
Insulator
Feeling the warmth of the sun on your skin.
Radiation
Why does metal feel hotter than wood or plastic when left in the sun?
Metal is a good conductor and transfers heat quickly, while wood and plastic are insulators
What is the main purpose if insulation?
To slow down heat transfer.
Movement of heat through direct contact.
Conduction
The rising and sinking of warm and cool fluids creates a ________________ ______________.
Convection Current.
Boiling water as bubbles moves in circles.
People use these to keep drinks hot or cold and to stay warm in the winter.
Insulated cups or jackets.
Why does an insulated cup stay warm longer than a regular cup?
Movement of heat through liquids and gases.
Convection
Invisible energy that travels through space is __________________ _____________.
Electromagnetic waves.
Touching a hot pan handle.
Conduction.
Give an example of conduction.
A metal lid loosening when placed under hot water is an example of.....
Expanding
Heat transfer through electromagnetic waves.
Radiation.
Material that protects to slow heat transfer is called _____________.
Insulation
Standing near a campfire and feeling heat.
Radiation
Explain how convection moves through soup.
The warmer particles rise and the cooler particles sinks.
When heat is added to matter, what happens to the particles?
They move faster and spread apart.
Material that allows heat to move easily.
Conductor.
A basketball feels flat on a cold day is an example of ______________.
Contracting.
Air inside a balloon warming up and rising.
Convection
Explain the difference between conduction, convection and radiation.
Conduction- Direct contact.
Convection- Through liquids and gases
Radiation- Through electromagnetic waves.
Give an example of insulation.
example may vary.