Physical Science
Big Idea 10: Forms of Energy
Grade 3 Quarter 2 Topic VI
What is Energy?
Department of Mathematics and Science
Big Idea 10: Forms of Energy
Grade 3 Benchmarks
• SC.3.P.10.1 Identify some basic forms of
energy such as light, heat, sound, electrical,
and mechanical.
• SC.3.P.10.2 Recognize that energy has the
ability to cause motion or create change.
Department of Mathematics and Science
Energy is all around us!
–You can see energy as light from the
sun or a lamp.
–You can feel it as heat warms things up.
–You can see motion energy every time
you move.
Department of Mathematics and Science
What is Energy?
•
Energy has the ability to cause motion.
•
Energy has the ability to create a change.
Energy can change an object’s:
motion
shape
temperature color
4
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You use energy when you:
– Take a walk
– Lift a book
– Throw a ball
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What are the Forms of Energy?
Explore forms
•Light
•Electrical
•Sound
•Heat/Thermal
•Mechanical
/
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What is Sound?
• Sound is a form of energy
• Sounds are made by a vibrations.
• Vibrations are back and forth movement.
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How do we make sounds?
• We use our vocal cords to make sounds
in our throat.
• When we speak, our vocal cords
vibrate.
• Place your hand on your throat when
you talk, and you can feel the vocal
cords vibrate.
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What can Sounds travel through?
• Sounds can travel through solids, liquids and
gases.
• Sound travels through all matter.
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What senses do we use to observe sound?
We can hear sound.
We can feel sound.
Sometimes we can see sound.
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Loudness or Volume
• Volume is the loudness or the softness of a
sound.
• Loud sounds use a lot of energy.
• Soft sounds use a little energy.
• The more vibrations the waves have, the more
energy, the louder the sound.
• Example: The harder a drum is hit, the more
the drum will vibrate . The more an object
vibrates, the louder the sound it makes.
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TAG Reflections
• Tell a fact you learned about sound.
• Ask a question about something you don’t
understand about sound.
• Give another idea that you’ve learned in our
study of energy.
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It’s Electricity, a Kind of Energy
Song
It makes a light bulb shine.
It makes a radio play.
It makes an oven bake.
What is it?
Chorus
It makes a washer wash.
It makes a dryer dry.
It makes a streetlight glow.
What is it?
Chorus
It makes a vacuum sweep.
It makes a TV play.
It makes a doorbell ring.
What is it?
Chorus:
It’s electricity—a kind of
energy that gives us light
and heat and power.
It makes a wall clock tick.
It makes a telephone ring.
It makes a blender mix.
What is it?
Chorus
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What is electrical energy?
• A form of energy that is produced when electrons
move from one place to another.
• Electrons are particles that are in the space
around the nucleus of an atom.
• The forces of attraction and repulsion make
electrons move.
• http://www.energyquest.ca.gov/story/chapter02.html
Office of Academics - Department of Science
Department of Mathematics and Science
What is Mechanical Energy?
• Mechanical energy is energy due to
motion.
• Mechanical energy can be stored energy
of position that could cause change in
the future.
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of Science
Department- Department
of Mathematics
and Science
What is light?
•
•
•
•
Light is something that allows us to see objects.
Light is a form of energy.
Light is produced by the vibrations of electrically
charged particles.
Light travels in waves.
Department of Mathematics and Science
What is Heat Energy?
• Heat is movement of energy from one place to
another.
• Temperature is a measure of heat energy.
• A thermometer is the tool used to measure
temperature.
• Every time energy changes form, it gives
off some unusable heat.
Reading a Thermometer
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What happens in Heat/Thermal Energy ?
• Energy is the movement of the atoms in an object.
• Heat is the movement of energy from one place to
another.
• When any form of matter gets warmer, the kinetic
energy of its atoms increases.
• The object’s particles move faster, so its heat/thermal
energy increases.
• A change in thermal energy can lead to a change in
phase or state of matter:
- Ice melts from a solid to a liquid.
- Liquid water changes to water vapor.
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Department of Mathematics and Science
What do you know about Electricity?
• Electricity gives power to machines.
• Look around the classroom
• Find at least three things that use electricity or
electrical energy.
• List them in your science notebook.
• Electricity is a kind of energy we use every
day.
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Concept Review: Forms of Energy
1. What is energy?
Answer: Energy is the ability to cause motion, or make
changes in an object.
2. What are the forms of energy?
Answer: They are light, mechanical, sound, heat, and
electricity.
3. What forms of energy can be observed using our senses?
Answer: We can see energy when it is in the forms of
motion and light. We can hear sound and we can feel
heat.
Department of Mathematics and Science
Basic Forms of Energy Quiz
Energy Forms
___1. Sound
___2. Electrical
___3. Heat/thermal
___4. Mechanical
___5. Light
What Happens?
Match – Up
A. Objects warm. Food cooks.
B. Lights on. / Machines run.
C. Matter vibrates.
D. Plants grow. / Humans see
E. Sled slides down the hill.
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List 5 forms of energy and give
an example for each energy
Energy Form
Example
1.
2.
3.
4.
5.
Department of Mathematics and Science
Discovery Ed. Resources
• FUN-damental, Sound, Heat, and Light
Exploration: Thermal Energy
• Reading: Heat, a Form of Energy
•
https://app.discoveryeducation.com/player/view/assetGuid/FACCBA9C-F31F-477F-8652F1611DB846CA
• Video: Heat
• Video Heat: The Flow of Energy from One Thing to
Another
Department of Mathematics and Science
Online Energy Videos and More
 The Energy Story: http://energyquest.ca.gov/story/index.html
 Energy and the Environment:
http://www.childrensuniversity.manchester.ac.uk/interactives/science/en
ergy
 Mechanical Energy (animation)
http://app.discoveryeducation.com/player/?assetGuid=2768797e-a7a045f5-b7a4812cd3422f7d&fromMyDe=0&isPrinterFriendly=0&provider=&isLessonFro
mHealth=0&productcode=DETB&isAssigned=false&includeHeader=YES&h
omeworkGuid=
• Energy
http://www.energyeducation.tx.gov/energy/section_1/topics/index.htm
• Kids and Energy http://www.kids.esdb.bg/index.html
• http://www.acs.org/content/dam/acsorg/education/resources/k8/science-activities/planetearth/air/heat-energy-extraordinaire.pdf
Department of Mathematics and Science
Light Resources
• AIMS Gr. 3 Physical Science:
Light Essentials p. 175
Light Rays Slow Down p. 205
Just Passing Through p. 183
Department of Mathematics and Science
Resources
• BBC Ages 6-7 Using electricity:
http://www.bbc.co.uk/schools/scienceclips/ages/6_7/electricity.shtml
• Energy Activity: Motion
http://www.eia.gov/kids/resources/teachers/pdfs/Motion_Energy_Primary.pdf
(teacher)
http://www.eia.gov/kids/resources/teachers/pdfs/PrimaryActivityMotionpdf.pdf (student)
• Primary Activity Racing Jars:
http://www.eia.gov/kids/resources/teachers/pdfs/primary%20jars.pdf
• School Learning Energy Survey:
http://www.eia.gov/kids/resources/teachers/pdfs/SchoolSurveyPrimary.pdf
• Home Learning Energy Survey:
http://www.eia.gov/kids/resources/teachers/pdfs/HomeSurveyPrimary.pdf
• Energy and Machines pictures
http://www.eia.gov/kids/resources/teachers/pdfs/energy&%20machines_prim.pdf
• Energy Transport
http://www.eia.gov/kids/resources/teachers/pdfs/Prim_%20transport%20sort.pdf
Department of Mathematics and Science
Discovery Light Resources
•Exploration: Light Energy
• Reading Passage: Light: A Form of Energy
Seeing in the Dark
• Video: Light: A Visible Form of Energy
•Exploration: Reflection
•Video: Light Reflection: Dependent on Surface
• Video: Light Sources and Observations
Exploration: Refraction
•Video: Refraction
•Video: The Visible Spectrum
Department of Mathematics and Science
Energy Resources
Discovery:
•
•
•
•
Fundamental: Energy Makes it Happen
Exploration: Forms of Energy
eBook: Forms of Energy
Video: Sources of Energy
AIMS Gr. 3 Physical Science:
Energy Match Up p. 151
Department of Mathematics and Science
Online Energy Videos and More
 The Energy Story: http://energyquest.ca.gov/story/index.html
 Energy and the Environment:
http://www.childrensuniversity.manchester.ac.uk/interactives/science/en
ergy
 Mechanical Energy (animation)
http://app.discoveryeducation.com/player/?assetGuid=2768797e-a7a045f5-b7a4812cd3422f7d&fromMyDe=0&isPrinterFriendly=0&provider=&isLessonFro
mHealth=0&productcode=DETB&isAssigned=false&includeHeader=YES&h
omeworkGuid=
• Energy
http://www.energyeducation.tx.gov/energy/section_1/topics/index.htm
• Kids and Energy http://www.kids.esdb.bg/index.html
Department of Mathematics and Science