Temperature
What temperature scale is commonly used in science?
Celsius
Name the three most common states of matter on earth.
Solid, liquid, gas
What needs to be added or subtracted in order to change the temperature of an object?
Energy
True or false: Liquid water has the same density whether it is hot or cold.
False - HOT water's molecules are more spread out (less dense) than cold water.
Thermal energy naturally flows from ________ energy to ________ energy.
high to low
Which temperature scale includes absolute zero?
Kelvin
What is the most common state of matter in the universe?
plasma
Energy flows from ______ objects to ______ objects.
hot to cold
True of False: A hot air balloon uses convection to rise it into the air.
True
What are the three methods of heat transfer?
Conduction, convection, radiation
Temperature is a measure of the _____________ of an object.
Thermal energy
Which state of matter has the highest thermal energy (i.e. its particles are moving the FASTEST?
Gas (highest temperature and particles are moving fastest)
Heat is the flow of _______ from object to object.
thermal energy or energy
The water in each flask remained separate in their own flasks when the hot water (red) flask was turned upside down on the cold water (blue) flask.
True.
Which heat transfer method is occurring when the sun warms the earth?
Radiation
What is the boiling point / evaporation point in degrees Celsius?
100 degrees Celsius
Which state of matter has the most RIGID structure?
Solids
As temperature increases and amount of thermal energy INCREASES or DECREASES?
Increases
The hot water (red) and the cold water (blue) mixed when the cold water was flipped on top of the hot water.
True
What is the name of a material that moves heat easily?
A conductor
What is the freezing point / melting point in degrees Celsius?
0 degrees Celsius
Name ONE change that occurs in a material when it changes from one state of matter to another.
Possible answers: temperature, energy, arrangement of molecules
What tool do we use to measure heat?
A thermometer
Molecules in a gas vibrate while molecules in a solid dart about.
False
A styrofoam is considered an _______ because it prevents heat transfer
insulator