Grade 4Curriculum Support Specialists:

Mary Tweedy

Noreyda Casañas

Dan Gangeri

Instructional Science Supervisor:

Dr. Millard Lightburn

What is Energy?

Big Idea 10: Forms of Energy

Benchmarks• SC.4.P.10.1 Observe and describe some basic forms of

energy, including light, heat, sound, electrical, and the energy of motion.

• SC.4.P.10.2 Investigate and describe that energy has the ability to cause motion or create change.

• SC.4.N.1.6 Keep records that describe observations made, carefully distinguishing actual observations from ideas and inferences about the observations.

• SC.4.N.2.1 Explain that science focuses solely on the natural world.

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What do light, heat and motion have in common?

They show 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.

You use energy when you:

– Take a walk– Lift a book – Throw a ball

How else do you use Energy?

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5

What is Energy?

Energy makes things happen.Energy is the ability to cause a change. Energy can change an object’s

Motion Shape Temperature Color

Energy is the Ability to Do Work

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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.

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Following Light

• Light bounces off or is reflected from some kinds of opaque objects.

Angles of Reflection

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Compare and Contrast

Cardboard VS A Mirror Light does not pass through opaque Dull Dark Absorbs light

Light does not pass through opaque shiny Smooth Reflects light

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Just Passing ThroughSome objects let all light pass through them

are known as: transparent

Some objects let some light pass through them are known as: translucent

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Bending Light LabWrite down responses on your note page.

Problem: What does light do when it travels from one medium or state of matter (air) through another medium (water)?

Hypothesis: Test and Observe: Follow steps from the lab

sheet. Conclusion:

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Light Changes Direction

• Light bends or refracts as it passes from one medium (form of matter: solid, liquid or gas) to another.

• Refraction of Light Virtual Tutorial

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What Color is Light?Write down responses on your note page.

Problem: What happens when we shine a flashlight on a CD?

Hypothesis:

Test and Observe:

Conclusion:

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TAG Reflections

• Tell a fact you learned about light.• Ask a question about something you don’t

understand about light.• Give another idea that was addressed in our

study of energy.

Mechanical Energy

• Mechanical energy is energy due to motion.

• Energy of motion is also known as kinetic energy.

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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. • Reading a Thermometer

• Every time energy changes form, it gives off

some unusable heat.

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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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How Does Heat Move?

• Thermal Energy flows from warmer substances to cooler substances.

• Heat can be transferred from one object to another.

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How Does Heat Move?• Thermal energy flows from warmer substances

to cooler substances.• Heat is transferred from one object to another

in three different ways:

conduction

convection

radiationOffice of Academics - Department of Science

What are the three methods of heat transfer?

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ConvectionConduction Radiation

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.

• Try Exploring circuits.

• Check out http://www.energyquest.ca.gov/story/chapter02.html• View Electricity

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Basic Forms of EnergyEnergy Forms

1. Sound

2. Electrical

3. Heat/thermal

4. Mechanical:

(kinetic)

5. Light

What Happens?

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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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.

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 seeE. Sled slides down the hill.

List 5 forms of energy and give an example for each energy

Energy Form

1.

2.

3.

4.

5.

Example

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/energy

Mechanical Energy (animation) http://app.discoveryeducation.com/player/?assetGuid=2768797e-a7a0-45f5-b7a4-812cd3422f7d&fromMyDe=0&isPrinterFriendly=0&provider=&isLessonFromHealth=0&productcode=DETB&isAssigned=false&includeHeader=YES&homeworkGuid=

• 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/k-8/scienc

e-activities/planetearth/air/heat-energy-extraordinaire.pdf

Discovery Ed. Resources• FUN-damental, Sound, Heat, and Light, to

review heat• Exploration: Thermal Energy• Reading: Heat, a Form of Energy•https://app.discoveryeducation.com/player/view/assetGuid/FACCBA9C-F31F-477F-8652-F1611DB846CA

•Video: HeatHave each student record in a paragraph and draw a diagram of what happens to the molecules in matter when heat is added or is taken away.