Vocab
The ability to change something or do work.
Energy
The particles in a ___________are very close together. The particles barely move.
Solid
When we rub our hands together we feel ___________ _____________.
thermal energy
When the liquid in the thermometer __________ (gets bigger) it means the substance is heating up. The particles are speeding up.
expands
Measures the total energy of the moving particles.
Thermal Energy
The particles in a ____________ are close together, but can’t move past each other. They move faster than a solid.
Liquid
All changes need __________.
energy
When the liquid in the thermometer contracts (gets smaller) it means the substance is ______________. The particles are slowing down.
cooling
The transfer of thermal energy from one piece of matter to another. It is the flow of thermal energy.
Heat
The particles in a _________ are far apart and move in many directions. The particles move quickly.
Gas
True or False?
An object with a high temperature has particles that move slowly.
False
A unit that measures the temperature of a substance
Degree
The measure of the average amount of motion in an object’s particles (the speed of the particles)
Temperature
As an object becomes __________ the particles move faster
hotter
The particles in a gas move _________.
quickly
At what temperature does water boil in Fahrenheit?
212 degrees
Measures temperature by showing degrees.
Thermometer
As an object gets cooler, the particles move ________.
slower
As an object cools, the particles move __________.
slower
At what temperature does water freeze in Fahrenheit?
32 Degrees