ESSENTIAL LAB 2:
THE MANY FORMS OF ENERGY
School District of Palm Beach County
Science Capacity Development
AGENDA
• Engage
• Bellringer
• Background Knowledge (I DO)
• Explore (WE DO)
• Explain
• Elaborate-Extensions
• Evaluate (YOU DO)
LAB NORMS
1. Be responsible.
2. Follow ALL instructions carefully.
3. Please do not touch any equipment, chemicals, or other materials in the
laboratory area until you are instructed to do so.
4. Do not eat food, drink beverages, or chew gum in the laboratory.
5. Dress properly during a laboratory activity : safety goggles, lab coats,
long hair tied back, no sandals, no dangling jewelry.
BENCHMARKS
• SC.B.1.3.1 AA The student identifies forms of energy and
explains that they can be measured and compared. (Also
assesses:)
• SC.A.2.3.3 The student knows that radiation, light, and heat are forms of energy used to cook
food, treat diseases, and provide energy.
• SC.B.1.3.2 The student knows that energy cannot be created or destroyed, but only changed
from one form to another.
• SC.B.1.3.3 The student knows the various forms in which energy comes to Earth from the sun
(e.g., visible light, infrared, and microwave).
• SC.B.1.3.4 The student knows that energy conversions are never 100% efficient (i.e., some
energy is transformed to heat and is unavailable for further useful work).
• I can identify different forms of energy and discuss how energy
can be transformed from one form to another.
ENGAGE
• What do the following items have in common: a match, a windup toy,
a flashlight, and a ball?
VOCABULARY
• SOLAR ENERGY
FCAT GLOSSARY WORDS:
• GEOTHERMAL ENERGY
• ELECTROMAGNETIC
RADIATION
• MECHANICAL ENERGY
• CHEMICAL ENERGY
• ELECTRICAL ENERGY
• HYDROELECTRIC ENERGY
• NUCLEAR ENERGY
• ENERGY CONVERSIONS
• CIRCUIT
• CONSERVATION OF ENERGY
• KINETIC ENERGY
• POTENTIAL ENERGY
• FOSSIL FUELS
• ENTROPY
• THERMAL ENERGY
BELLRINGER
I DO
• Energy is the ability to do work. Work is done when a force
causes an object to move in the direction of the applied force.
• Kinetic energy is energy of motion and depends on mass
and speed. All moving objects have kinetic energy.
• Potential energy is stored energy or the energy an object
has due to its position.
• There are several forms of energy: mechanical, electrical,
electromagnetic (all forms of the electromagnetic spectrum),
nuclear, chemical, thermal, and sound.
• All forms of energy can be measured and compared.
• Energy conversions are changes from one form of energy to another.
(example: turn on a fan, electrical energy  mechanical energy)
• Due to friction, some energy is always converted into thermal energy during a
conversion. As a result, energy conversions are never 100% efficient.
• Energy is conserved within a closed system because energy cannot be
created or destroyed, it can only be changed from one form to another.
• The loss of useful energy from a system to its surroundings causes the amount
of disorder to increase. (ENTROPY)
*For more information on energy and transformations, read Chapter 19, Sections 1, 3, and 4 in the green textbook.
EXPLORE
• On your labsheet, complete the hypothesis.
• Put the sandwich bag flat on the table and OBSERVE the materials.
• PREDICT and draw and label what you think the circuit will look like to
cause the light bulb to light or the buzzer to sound.
• Open the bag and take out the materials.
• Build your circuit. Once it works, draw and label the circuit.
• Once your second drawing is complete, read and complete step 4.
• Conversions should be written as _______ to _______
or ______  _______ .
EXPLAIN
Draw and label the circuit that worked.
Energy Transformations in the Circuit
1
2
3
4
5
6
EXAMPLE: electrical
electromagnetic (visible light)
where the conductor connects to the
bulb
EXPLAIN
In your science notebook, answer the following question to
demonstrate what you know about forms of energy and energy
transformations.
Question:
A flashlight is a system that transforms energy into different forms.
Starting with the chemical energy in the batteries, describe the energy
conversions that occur in a flashlight to produce light and heat.
ELABORATE
Select one or more scenes from a magazine that depict everyday life.
Give each group of students a copy of a scene or project a scene on
your LCD projector. Have students work in groups or individually to
study the scene and identify examples of potential energy (stored
energy) and kinetic energy (energy of motion). You may further
elaborate on these concepts by challenging students to identify
energy transformations found in the scene(s).
EVALUATE
Think about a candle on a birthday cake. What conversion of energy takes place
after the candle is lit?
A. the conversion from thermal energy into mechanical energy and
electromagnetic energy
B. the conversion of electromagnetic energy into mechanical energy and
chemical energy
C. the conversion of chemical energy into thermal energy and electromagnetic
energy
D. the conversion of mechanical energy into thermal energy and chemical
energy
SCIENCE CAPACITY DEVELOPMENT TEAM
Cristian Carranza, Science Manager
cristian.carranza@palmbeach.k12.fl.us
Shari Bremekamp
bremekamp@palmbeach.k12.fl.us
William Rizzo
rizzow@palmbeach.k12.fl.us
Crystal Clark
clarkcr@palmbeach.k12.fl.us
Adrian Seepersaud
seepersaud@palmbeach.k12.fl.us
Annmarie Dilbert
dilbert@palmbeach.k12.fl.us
Amie Souder
souder@palmbeach.k12.fl.us
Christel Leahy
christel.leahy@palmbeach.k12.fl.us
Heather Trapani
trapanih@palmbeach.k12.fl.us
Terrence Narinesingh
narinesingh@palmbeach.k12.fl.us
Robera Walker
robera.walker@palmbeach.k12.fl.us
Kirk Nieveen
kirk.nieveen@palmbeach.k12.fl.us
Paul Wojciechowsky
wojciep@palmbeach.k12.fl.us
Andrea Reilly
reilly@palmbeach.k12.fl.us