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Energy
Energy
• What is meant by the word energy?
• What do we energy for?
• What does energy do?
Energy Vocabulary
Vocabulary
energy
Types of Energy
What I learned today
• Energy makes things
happen
• All actions are the
result of energy
• Energy is the ability
to do things
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Electricity
Heat
Light
Motion
Chemical
Sound
Sketch
Energy Vocabulary
Vocabulary
Sources of Energy
Stored energy or
Potential Energy
What I learned today
• Batteries
• Food
• Fuel (gas and candle
wax)
• Muscles
• Sun
Energy that is available to
make things happen
• Batteries
• Wood
• Gasoline
• Candle wax
Sketch
Energy Vocabulary
Vocabulary
Energy from the Sun
What I learned today
• Plants use solar
energy to grow
(Sun)
• As plants grow they
store energy
• When humans and
animals eat plants
we change the
stored energy into
energy to help us
move
Sketch
Flashlight Challenge
• What do you think we can do to get the
flashlight to work?
• What action did you observe?
The flashlight made light.
• What kind of energy caused that action?
Electricity
Flashlight Challenge
• What was the energy source?
The batteries
• Where was the energy stored?
In the batteries
• What was the stored energy converted into?
Electricity was converted into light
• The energy in the battery converted into light
energy.
Energy Stations
Station 1: Solar Cell—Do together
Station 2: Tone Generator
Station 3: Motor
Station 4: Candle and hand rubbing
Station 1: Solar Cell
• What action did you observe?
The motor shaft turned.
• What kind of energy cause that action?
Electricity
• What was the energy source
Solar cell
• Where was the energy stored?
Sun
• What was the stored energy converted into?
Motion
• The energy in the Sun changed into motion energy.
Station 2: Tone Generator
• What action did you observe?
The speaker made a sound.
• What kind of energy cause that action?
Electricity
• What was the energy source
battery
• Where was the energy stored?
In the battery
• What was the stored energy converted into?
sound
• The energy in the battery changed into sound energy.
Station 3: Motor
• What action did you observe?
The motor shaft turned
• What kind of energy cause that action?
electricity
• What was the energy source
battery
• Where was the energy stored?
In the battery
• What was the stored energy converted into?
motion
• The energy in the battery changed into motion energy.
Station 4A: Candle
• What action did you observe?
Heat and light
• What kind of energy cause that action?
Burning/flame
• What was the energy source
wick
• Where was the energy stored?
wick
• What was the stored energy converted into?
Heat and light
• The energy in the wick changed into heat and light energy.
Station 4B: Rubbing Your Hands
• What action did you observe?
Heat
• What kind of energy cause that action?
movement
• What was the energy source
muscles
• Where was the energy store?
muscles
• What was the stored energy converted into?
Heat
• The energy in the muscles changed into heat energy.
Energy Source Questions
1) What is energy?
• Energy makes things happen.
• All actions are the result of energy.
• Energy is the ability to do things.
Energy Source Questions
2) What are some of the different kinds on
energy?
• Electricity
• Heat
• Sound
• Light
• Motion
• Chemical energy
Energy Source Questions
3) What are some of the sources of stored
energy that people use?
• Batteries
• Fuel
• Foods
4) How are food, fuel, and batteries alike?
• They have energy stored as chemical energy.
Energy Source Questions
5) What is the source of most of the energy
used by people? Explain.
• The Sun.
• Plants capture the Sun’s energy as chemical
energy. That energy is in food and fossil fuels
(gas). Food and fuel are the energy sources
that people use most often.
Resources
Inexhaustible
Renewable
Will never run out
• Sun
• Ocean
• Wind
Can be reused or recycled
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Tree
Corn
Wheat
Logs
cow
Game
Non-Renewable
Will run out
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Oil
Gold
Diamond
granite
Energy Conversion
Potential Energy or stored energy—energy that
is available to make things happen
Kinetic energy—the energy of motion. All
moving objects have kinetic energy.
Energy Conversion
Stored-Energy Source
• Sun
• Candle
• Gasoline
• Battery
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Energy Action
Light, Heat, Electricity,
Chemical
Light, Heat
Heat
Light, Heat, Electricity,
Machine Motion
Muscle Movement, Heat
• Apple
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• Wood
• Light, Heat
Energy Conversion
See that truck driving by? It is powered by
sunlight.
Brad’s friend said,
No it isn’t, it’s powered by gasoline.
Explain why Brad said the truck was powered by
sunlight.
Energy Conversion
Energy from the Sun is absorbed by plants and
converted into chemical energy (food). The
chemical energy changed into oil, a fossil fuel,
which is made into gasoline. The gasoline is
burned, releasing heat. Heat drives the car
forward. The original source of energy was the Sun,
so the car is driving on solar energy that has been
converted into other forms by plants and burning.
Using Energy Video
Using Energy Questions
1) What is stored or potential energy?
Energy that is available to make things happen.
2) What is kinetic energy?
The energy of motion. All moving things have
kinetic energy.
Using Energy Questions
3) Name at least three types of energy that
come from the Sun?
• Heat
• Light
• Electricity
• Chemical
Using Energy Questions
4) What is the source of most of the energy used
by people? Explain how it works.
Plants use solar energy (sun) to grow. Plants
grow and store energy. Humans and animals eat
plants and change the stored energy in the
plants into energy to help them move and grow.
Energy Transfer Vocabulary
Vocabulary
Energy transfer
wave
What I learned today
• The movement of
energy from one thing
to another or the
change of energy form
one form to another
• Energy is moved
(transferred) from one
place to another by:
wires, moving objects or
waves
• Repeating movement like
up and down (transverse
wave) or back and forth
(compression wave)
Sketch
Water Waves
• What action did you observe?
Waves in the water
• Where did the energy come from?
Muscles pushing
• Where did the energy go?
To the ball
• What carried the energy?
Water waves
• The energy in hand muscles move through the
water waves and ended up moving the ball.
Station 1: Tone Generator
• What action did you observe?
Rice vibrating
• Where did the energy come from?
battery
• Where did the energy go?
To the rice
• What carried the energy?
Waves in the air
• The energy in battery move through the air and
ended up in the moving rice grains.
Station 2: Spring Toy
• What action did you observe?
waves in the spring
• Where did the energy come from?
Pulling the spring together
• Where did the energy go?
Up and down the spring
• What carried the energy?
The metal spring
• The energy in hand muscles move through the
spring and ended up moving the spring.
Station 3: Bowling
• What action did you observe?
Ball knocking bottles
• Where did the energy come from?
hand
• Where did the energy go?
The bottles
• What carried the energy?
Moving ball
• The energy in arm move through the ball and
ended up in the bottles.
Station 4: Battery and Motor
• What action did you observe?
Motor shaft turning
• Where did the energy come from?
battery
• Where did the energy go?
motor
• What carried the energy?
wires
• The energy in battery move through the wires
and ended up turning the motor shaft.
Energy Transfer Questions
1) Where do people get energy?
From food
2) Why does a car need gasoline to run?
Gasoline is fuel that is burned to make the
power to move the car.
Energy Transfer Questions
3) What kinds of things have moving energy?
A skateboard moving downhill, a falling ball, and
a person running
4) What are some examples of stored energy?
Food, a battery, gasoline for cars, and wood for
fires
Energy Transfer Questions
5) How can stored energy change into active,
moving energy?
-Rolling a bowling ball down an alley
-Rolling downhill on a skateboard
-Burning gasoline to power a car
-Burning wood to make steam to drive a train
6) What is fuel used for?
Fuel is stored energy that is burned to make things
happen.
Energy Transfer Questions
7) How does energy from the Sun get converted
into energy that can be used by humans and
other animals?
Plants use solar energy (sun) to grow. They store
energy. We eat the plants, the stored energy is
changed into energy to help us move and grow.
Energy Transfer Summary
• Energy is carried from one place to another by
waves, electric current or moving objects.
• Sound Waves--Objects push on air creating
waves. Waves move through the air until they
hit your ear. The energy in the sound wave
moves the bones in your ear, and you hear
sound.
• Video