Vocabulary
What is matter?
Anything that takes up space and has mass.
What is the shape of a solid?
Definite shape; has its own shape
The particles of a liquid have _____ kinetic energy.
some
How do gas particles move?
They spread far apart in all directions and fill their container.
What is the smallest unit of matter?
an atom
What is a property?
An observable characteristic of a substance.
How are particles arranged in a solid?
They are tightly packed.
What is the volume of a liquid?
Fixed volume
What is the arrangement of particles in a gas?
They are far apart and move freely.
What are molecules made of?
Two or more atoms bonded together (same or different).
What is mass?
The amount of matter in an object.
The particles of a solid have _____ kinetic energy.
very little
What is the arrangement of particles in a liquid?
They are loosely packed.
The particles of a gas have _____ kinetic energy.
a lot of
Who lives in a pineapple under the sea?
(You must sing the answer TOGETHER in order to earn the points).
Sponge Bob Square Pants!
What is an element?
A molecule that contains only one type of atom.
What is the volume of a solid?
Fixed volume
How do particles in a liquid move?
They slip and slide past each other.
What is the volume of a gas?
does not have its own volume; fills the volume of its container
What is a compound?
Two or more different elements bonded together
What is the definition of density?
The amount of mass in a given volume.
What happens to particle energy when a solid becomes a liquid?
How does the arrangement and movement of particles determine a substance’s state of matter?
A substance's state of matter is determined by how close together its particles are and how freely they move around.
How does the density of a solid contrast to that of a gas? Why?
A solid is more dense that a gas because its particles are more closely packed together; a gas is less dense than a solid because its molecules are farther apart from each other.
Why is oxygen (O2) a molecule, but not a compound?
It is made of 2 chemically bonded atoms so it is a molecule, but it is not a compound because the atoms are the same type, whic makes it an element.