Energy Transformations
Energy transformation in an electric blanket that is on.
What is electrical to heat
This is the ability to cause change.
What is energy
liquid to solid
Solidification (release)
Seeing wet grass in the morning on your walk to school is an example of which phase change?
Condensation
Which of the following is not a chemical change?
a. Digestion of food
b. Precipitation of rain or snow
c. Rusting of iron
d. Burning of paper
B. Precipitation of rain or snow
Energy transformation in a hair dryer that is ON.
What is electrical to thermal & sound?
This is the energy from particles in motion
What is thermal?
Gas to liquid
Condensation (release)
Popsicle sitting out in the sun
Fusion
Can a chemical reaction have an element in the products that is not found in the reagents?
No
Energy transformation in a lamp that is on.
What is electrical to thermal and radiant?
This is energy that comes from electromagnetic waves that can take many forms from microwaves to X-rays to visible light
What is radiant?
Liquid to Gas
Vaporization (absorb)
Leaving a cup of water on the counter for several days
Vaporization
What chemical change occurs in an oxidation reaction?
Colour Change
Energy transformation when plants go through photosynthesis
What is radiant to chemical
This type of energy is stored in bonds
What is chemical?
Solid to Liquid
Fusion (absorb)
Making ice cubes
Solidification
Rajiv and Jamila reacted some magnesium ribbon with dilute hydrochloric acid and observed that bubbles of gas were produced.
What is the proof that there was a chemical reaction taking place?
The bubbles of gas were produced.
Energy transformation when you use an oven
What is electrical to thermal
or chemical to thermal
This energy comes from the speed of an object in relation to its mass
What is mechanical?
Solid to Gas
&
Gas to Solid
Sublimation (absorb)
Deposition (release)
Dry Ice
Sublimation
Andy and James mixed two solutions in a beaker and observed that there was a precipitate forming. Is this a chemical or a physical change?
Chemical (precipitation)