Grade 2
Big Idea10: Forms of Energy
Energy Sources
Mary Tweedy
Curriculum Support Specialist
Department of Mathematics and Science
Grade 2 Benchmarks
• SC.2.P.10.1 - Discuss that people use electricity or
other forms of energy to cook their food, cool or
warm their homes, and power their cars. (Cognitive
Complexity/Depth of Knowledge Rating: Low)
• SC.2.N.1.1 - Raise questions about the natural world,
investigate them in teams through free exploration
and systematic observations, and generate
appropriate explanations based on those
explorations. (Cognitive Complexity/Depth of
Knowledge Rating: High)
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Energy Sources
Objectives: The student will be able to demonstrate
understanding of:
• Explaining that energy is needed to make
objects work.
• Describing how people use electricity and other
forms of energy at home and school.
• Identifying and describing sources of energy.
• Naming three different objects and the kind of
energy they require.
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
What do you know about Electricity?
• We’re living in an electrical world
• Electricity gives power to machines.
• Electricity is a kind of energy we use every
day.
Look around the classroom
• Find at least three things that use electricity.
• List them in your science notebook.
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It’s Electricity, a Kind of Energy
Sing Along
It makes a light bulb shine.
It makes a radio play.
It makes an oven bake.
What is it?
It makes a washer wash.
It makes a dryer dry.
It makes a streetlight glow.
What is it?
It makes a wall clock tick.
It makes a telephone ring.
It makes a blender mix.
What is it?
It makes a vacuum sweep.
It makes a TV play.
It makes a doorbell ring.
What is it?
It’s electricity—a kind of
energy that gives us light
and heat and power.
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Are There Other Kinds of Energy?
Yes, there are other kinds of energy. Light is a kind of
energy. It can come from lamps and TVs. It comes from the
sun, too.
The sun is a source of light. It is also a source of heat. You
can see the light from the sun. You can feel the sun’s heat
energy.
What Kinds of Energy Do Different Things Need?
Your body also has energy! You get energy from the food
you eat.
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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 hear energy as sound when someone
talks.
– You can see mechanical energy every time you
move.
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Racing Jars
Primary Activity Racing Jars:
http://www.eia.gov/kids/resources/teachers/pdfs/primary%20jars.pdf
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Energy Users
What energy do these objects use?
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Quiz
What is the source that powers
each of these devices (energy users)?
Part A: Device
1.
___________
Part B: Energy Source
1.
2.
___________
2.
3.
__________
3.
4.
4.
___________
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Hands-On Activity:
Measuring Heat
In this activity, students will demonstrate the
following Inquiry Skills:
• Gather Data Using the thermometer as a tool and
the metric units, Celcius.
• Make inferences to draw conclusions.
Materials:
• · Lamp without a shade
• · Thermometer
• · Incandescent light bulb
• · Compact fluorescent light bulb
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Measuring Heat continued:
1. Place a thermometer near the lamp with the bulb
turned off.
2. Measure the room temperature and record it on a Data
Chart.
3. Switch on the lamp with the incandescent light bulb
screwed into place. Wait 10 minutes.
4. After ten minutes, measure the temperature near the
light bulb. Be sure to take the temperature in the exact
spot as before and record it on a Data Chart.
5. Switch off the lamp and allow the incandescent light
bulb to cool and remove from the lamp.
6. Place the compact fluorescent light bulb in the
lamp. Repeat steps 3. – 5.
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Measuring Heat DATA
#1 Incandescent Light Bulb
#2 Compact Florescent Bulb
Room Temperature ______
After 10 minutes ______
Difference _______
Room Temperature _______
After 10 minutes _______
Difference _______
Compare the temperature differences between the two
types of bulbs.
Why do you think they are different? Explain using data
(evidence).
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Energy Notes
Date
Observations
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Sense(s)
Used
Energy
Energy Sources
What Happens?
• Electrical
• Lights on. / Machines run.
• Sun
• Plants grow. / Air warms up.
• Battery
• Flashlights light up. / Clocks work.
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What are three different sources that
energy comes from?
1. Sun
2. Electricity*
3. Batteries
*Be safe: Stay away from electrical outlets!
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Energy Field Studies Trip
to the Media Center
In this activity, you will demonstrate the following Inquiry
Skills:
• Gather data.
• Use the appropriate format to record data on a chart
and then make a graph.
Materials:
• Pencil
• Three-column chart with headings “Sun,” “Electricity,”
and “Batteries” for each pair of students
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Work with a partner to identify objects
that get energy from
electricity, the sun, or batteries
Electricity
Sun
Batteries
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Connected Learning
1. What is something in the Media Center that
gets energy from electricity?
1. What did you see that gets energy from the
sun?
1. Did you find something that gets energy from
batteries?
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Home Learning
1. Look around your home.
2. Make a 3 column chart labeled electricity,
batteries, and solar power
3. Work with a parent to identify things that use
electricity, batteries, or solar power
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Energy Review
Connected Learning
1. Why is energy important?
We need energy to be able to move. Machines also need energy to
help us do work.
2. What do people use electricity and other forms of energy for?
People use electricity for many things, such as washing their clothes,
cooking their food, and making light to see at night. They use many
other forms of energy, too. They use gasoline to run their cars. They
use natural gas to cook their food. They use energy from the sun to
power their calculators.
3. What are three sources of energy?
Energy can come from the sun, electricity, batteries, or wind.
4. What kinds of energy do different things need?
Different things use different kinds of energy. Cars need gasoline.
Some toys need batteries. Some things need electrical energy.
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TAG Reflections
• Tell a fact you learned about energy.
• Ask a question about something you don’t
understand about energy resources.
• Give another idea that was addressed in our
study of energy resources.
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