States of Matter
Grade 5 Science
Presented by: Ms. Yolanda
States of Matter
Matter exists in three main forms: solids,
liquids, and gases.
Each state has unique properties
determined by particle arrangement and
movement.
Understanding these differences helps us
learn how matter interacts in our world.
Did you know that solids
maintain their shape
without any support?
This is because the particles in solids are
closely packed together.
Liquids can flow and take
the shape of their container.
This is due to particles being close
together but able to move freely.
Gas expands to fill any
available space in a
container.
This is due to particles being far apart and
moving freely.
Comparing States of Matter
Solids
Liquids
Gases
Key Differences
Have a fixed
shape and
volume, with
closely packed
particles
Take the shape of
their container,
with loosely
packed particles
Fill the entire
space of their
container, with
widely spaced
particles
Different
properties affect
how solids,
liquids, and gases
behave
Solids have strong
forces holding them
together tightly.
Liquids can flow,
allowing them to
change shape easily.
Gases move freely
and can expand to
fill any area.
Understanding these
differences helps us
learn about matter.
The Particle Model
1789
1803
1860
1897
1911
John Dalton
proposes atomic
theory of matter.
Dalton describes
atoms as solid
spheres in matter.
J.J. Berzelius
develops modern
symbols for
elements.
J.J. Thomson
discovers the
electron as a
particle.
Ernest Rutherford
proposes the
nuclear model of
the atom.
Dalton's theory laid
the foundation for
atomic science.
Element symbols
help scientists
communicate
efficiently about
matter.
Thomson's discovery
revealed smaller
particles within the
atom.
Rutherford’s model
introduced the
concept of a nucleus.
These events shaped
our understanding of
matter and particles.
Solids have particles that
are closely packed and
vibrate in place.
This tight packing gives solids a definite
shape and volume.
Liquids have closely packed
particles that can slide past
each other.
This allows liquids to take the shape of
their container.
Gas particles move freely
and quickly, filling available
space.
They collide with each other, creating
pressure in their container.
Changing States
Matter can change from one state to
another through processes like melting and
freezing.
Boiling and condensation are important for
understanding how liquids become gases
and vice versa.
These changes are affected by temperature
and pressure in our environment.
Did you know that about
70% of the Earth's surface is
covered in water?
This water constantly evaporates, changing
into vapor and entering the atmosphere.
Evaporation
Higher temperatures make water molecules
move faster, increasing evaporation rates.
A larger surface area allows more molecules
to escape into the air.
High humidity slows evaporation because
the air is already filled with water vapor.
Condensation occurs when
water vapor cools and turns
into liquid.
This process is essential for forming clouds
and precipitation.
Everyday Examples
You can see evaporation when puddles dry
up on sunny days.
Condensation forms on cold drinks as water
droplets appear outside the glass.
Steam from boiling water shows
evaporation in action in the kitchen.
Summary
Matter exists in three states: solids, liquids,
and gases, each with unique properties.
Understanding particle arrangement helps
us comprehend how materials behave in
different states.
Changing states of matter occurs through
processes like melting, freezing, and
evaporation.
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Activity Time!
-Complete the attached worksheet