Solids
A solid ________ its shape unless __________ is applied
A solid holds its shape unless force is applied
Give two examples of a liquid
answers may vary
Give one example of a gas
answers may vary
Define evaporation
Evaporation occurs when a liquid becomes a gas.
What is matter?
Anything that has mass and takes up space.
Solids do not flow or take the shape of their container
A liquid is a form of matter that has no __________ ________________.
A liquid is a form of matter that has no defined shape.
A gas __________ to fit the volume of the container it is placed in.
A gas expands to fit the volume of the container it is
placed in.
Define condensation
Condensation occurs when a gas becomes a liquid.
___________: are the smallest unit that matter can be divided into.
Atoms: are the smallest unit that matter can be divided into.
Name 4 examples of solids
Answers may vary
Liquids can take the __________ of the container that they are stored in.
Liquids can take the shape of the container that they
are stored in.
particles in gases move _________.
particles in gases
move freely.
Define sublimation
Sublimation occurs when a solid becomes a gas.
What is thermal energy?
Thermal energy is the energy in an object due to
the movement of its molecules and atoms.
A solids particals are in an _____________ arrangement.
A solids particals are in an ordered arrangement.
Liquids have a ________________ volume, but no fixed shape.
Liquids have a fixed volume, but no fixed shape.
Gases can be ________________.
Gases can be compressed.
Define deposition
Deposition occurs when a gas becomes a solid.
Name all 5 physical properties of matter
Lustre, opacity, hardness, magnetism, colour
Solid particles are ______________ packed.
Solid particles are tightly packed.
The particles in liquid are ________________ packed together.
The particles in liquid are loosely packed together.
The particles in gas follow no ________________.
The particles in gas follow no pattern.
Give one example of sublimation and one example of deposition
Sublimation: dry ice (solid turns to gas)
Deposition: Frost forms when warm, moist air comes into contact with cold surfaces. (gas to solid)
A physical change is a reversible change in the physical properties of a substance and no new substance is formed (cutting paper). A chemical change is often irreversible and a new substance is formed (baking a cake).