Transcript PRESENTATION NAME - NoTurkeysatDurkee

th
5
Grade MidYear Science
Review, Physical Science
Aldine ISD
2009/2010
5.7A Classify matter based on its physical properties
including magnetism, physical state, and the ability to
conduct or insulate heat, electricity, and sound.
• All our physical world is made of matter.
• Matter is anything that has mass and occupies space.
• Matter can be classified according to its physical
properties:
 Magnetism (attracted to a magnet)
 Physical state (solid, liquid, or gas)
 Ability to conduct or insulate heat,
electricity or sound
Solid
Liquid
Gas
5.7B Demonstrate that some mixtures maintain the
physical properties of their ingredients.
• A mixture is a combination of two or more ingredients where
no new substance is formed.
• Solids, liquids, and gases can be combined to form mixtures.
• When you create a mixture, the ingredients keep all or some
of their physical properties.
• A solution is a special kind of mixture where the particles of at
least one ingredient spread out evenly in the other ingredient.
In a solution, one ingredient can dissolve in another. The
ingredients still maintain their physical properties.
Mixture
Solution
5.7B Demonstrate that some mixtures maintain the
physical properties of their ingredients.
• The ingredients in a mixture can be separated out by
physical methods.
• There are different methods you can use to separate the
ingredients in a mixture:
 By hand: some mixtures, such as trail
mix, can be easily separated by using
fingers or tools like toothpicks.
 Magnetism: if one of the ingredients is
magnetic, you can use a magnet to
Trail Mix
separate the materials.
Magnetism
5.7B Demonstrate that some mixtures maintain the
physical properties of their ingredients.
• There are different methods you can use to separate the
ingredients in a mixture:
 Filter: if the ingredients have
particles that are different sizes,
or one ingredient is a liquid and
the other is a solid, you can pour
the mixture over a filter or
screen. One ingredient will pass
through the filter, but not the
other.
 Boiling/Evaporating: if the
mixture has a solid dissolved in
water, you can wait for the water
to evaporate or boil the water.
The water will change to vapor,
but the solid will remain behind.
5.7C Identify changes that can take place in the physical
properties of solutions such as dissolving sugar in water.
• A solution is a special kind of mixture in
which the particles in one ingredient
spread out and mix evenly among the
particles in the other ingredient.
• For example, when sugar dissolves in
water, the sugar breaks down into tiny,
tiny particles. The sugar particles are so
small that we cannot even see them.
Those particles spread out between the
water particles. It seems like the sugar
disappears, but it doesn’t. We know it’s
still there because the water now tastes
sweet.
• Sugar can be separated from the water.
One way is to put a stick in a sugar-water
solution. As the water evaporates, sugar
particles stick to the stick. Eventually,
the particles will form crystals around the
stick.
5.7D Observe and measure characteristic properties of
substances that remain constant such as boiling points
and melting points.
• All pure substances have their own characteristic boiling,
melting and freezing points. These are characteristics of
the pure substance that remain constant.
 Melting point is the temperature at which a
substance changes from a solid to a liquid.
 Boiling point is the temperature at which a
liquid changes to a gas.
 Freezing point is the temperature at which a
Freezing
liquid changes to a solid.
Melting
5.7D Observe and measure characteristic properties of
substances that remain constant such as boiling points
and melting points.
• The table below explains changes in state:
Change of State
Name
Solid  Liquid
Liquid  Solid
Melting
Freezing
Liquid  Gas
Gas  Liquid
Boiling
Condensing
Temperature for Water
0°C
100°C
5.7A, 5.7B, 5.7C, 5.7D
Answer
questions
12-14 on the
review
sheet.
5.8A Differentiate among forms of energy
including light, heat, electrical, and solar
energy.
• Energy is all around us.
Light
• You see energy as light
light; you
feel energy as heat
heat; you use
Heat
electrical energy; you see
and feel the heat and light
from solar energy; you hear
energy as sound
sound.
Electrical
• Energy is the ability to do
work or cause changes in
matter.
Solar energy
5.8B Identify and demonstrate everyday examples
of how light is reflected, such as from tinted windows,
and refracted, such as in cameras, telescopes, and
eyeglasses.
• What happens when light strikes clear glass?
Or waxed paper? Or a book?
 Light is transmitted, or passed
through clear, transparent objects.
 Light is absorbed by opaque objects.
The light is blocked and a dark
shadow is cast.
 Some light—but not all—passes
through translucent objects.
5.8B Identify and demonstrate everyday examples
of how light is reflected, such as from tinted windows,
and refracted, such as in cameras, telescopes, and
eyeglasses.
• When light strikes a smooth, shiny surface, it
can be reflected
reflected, or bounced back.
Tinted Window
Smooth Water
5.8B Identify and demonstrate everyday examples
of how light is reflected, such as from tinted windows,
and refracted, such as in cameras, telescopes, and
eyeglasses.
• When light passes from
one medium to another, it
can be refracted
refracted, or bent.
5.8C Demonstrate that electricity can flow in a circuit
and can produce heat, light, sound, and magnetic
effects.
• Electricity is a form of energy
made by fast-moving particles.
• Electricity flows through
materials called conductors.
Most metals are good
conductors of electricity.
5.8C Demonstrate that electricity can flow in a circuit
and can produce heat, light, sound, and magnetic
effects.
• Electricity flows
along a path of
conductors called a
circuit.
• Electricity can only
flow if it is a
complete circuit—a
continuous path for
the particles to move
through.
5.8C Demonstrate that electricity can flow in a circuit
and can produce heat, light, sound, and magnetic
effects.
• Electrical circuits can produce:




Heat
Light
Sound
Magnetic effects
5.8D Verify that vibrating an object can produce
sound.
• When objects or
materials vibrate,
sound is produced.
• A force must be
applied to make the
object vibrate.
• Sound travels better
and faster through a
solid than a gas or a
liquid
5.8A, 5.8B, 5.8C, 5.8D
Answer
questions 1518 on the
review sheet.
3.6A Measure and record changes in the position and
direction of the motion of an object to which a force such
as a push or pull has been applied.
What is motion????
Motion is a change
in the position of
an object.
3.6A Measure and record changes in the position and
direction of the motion of an object to which a force such
as a push or pull has been applied.
A moving object can change:
• Position
• Direction
3.6A Measure and record changes in the position and
direction of the motion of an object to which a force such
as a push or pull has been applied.
Forces that affect the movement of
objects:
• Gravity
• Friction
• A push or a pull
3.6A Measure and record changes in the position and
direction of the motion of an object to which a force such
as a push or pull has been applied.
Answer questions
19 and 20 on the
review sheet!
Answer Key:
12. 20 grams of salt
13. A sieve and a magnet
14. A 0°C
Material
Transmits Absorbs
15.
Reflects

Lake

Glasses

Mirror
Clear window


Tinted window
Green apple
Refracts

Telescope

Camera

Answer Key:
16.
17.
18.
19.
20.
C reflected
A mirror
D Vibrating air
D A rough surface
C 80 cm