Download Physical and Chemical Changes Picture Vocabulary

Physical and Chemical Changes
Picture Vocabulary
Matter and Energy
Physical Change
A change to a substance without forming a
new substance, such as changing size
or state of matter.
Chemical Change
A change that alters the identity of a
substance, resulting in a new substance or
substances with different properties.
Cell
This is an example
of a blood cell.
The basic structural and functional unit
in living organisms.
Organ
A large mass of similar tissue that makes up a
part of an organism that performs a specific
function.
Digestive System
The group of organs that work together
to break down food by physical and chemical
processes into nutrients that the body can use.
Saliva
A clear liquid that moistens the mouth and
starts the digestion of food.
Digestive Juices
Chemicals secreted or released into the mouth,
stomach, and intestines; responsible for aiding in the
chemical break down of carbohydrates, proteins, and
fats.
Stomach
The organ in the digestive system that
churns food and mixes it with digestive juices.
Small Intestine
The organ in the digestive system that
finishes breaking down food with digestive juices
and absorbs the nutrients.
Nutrients
The organ in the digestive system that
finishes breaking down food with digestive juices
and absorbs the nutrients.
Proteins
Large complex molecules containing carbon,
hydrogen, nitrogen, oxygen, and sometimes
sulfur that break down to amino acids.
Amino Acids
The building blocks of the proteins
in our bodies and in the food we eat.
Lipids (Fat)
One of the nutrient-providing components of food; used
as an energy source in the body, and
found in butter, oils, nuts, meat, fish, and
some dairy products.
Fatty Acids
The building blocks of the fat in our bodies
and in the food we eat.
Carbohydrates
Molecules containing carbon, hydrogen, and
oxygen that break down into simple sugars.
Sugars (Glucose)
A simple molecule with stored chemical energy; the
product of photosynthesis and the building blocks of the
carbohydrates in our bodies and in the food we eat.