Download heat

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Building insulation materials wikipedia , lookup

Convection wikipedia , lookup

Water heating wikipedia , lookup

Heat exchanger wikipedia , lookup

Heat equation wikipedia , lookup

Intercooler wikipedia , lookup

Underfloor heating wikipedia , lookup

Copper in heat exchangers wikipedia , lookup

Cogeneration wikipedia , lookup

Solar air conditioning wikipedia , lookup

R-value (insulation) wikipedia , lookup

Thermoregulation wikipedia , lookup

Solar water heating wikipedia , lookup

Heat wave wikipedia , lookup

Economizer wikipedia , lookup

Thermal conduction wikipedia , lookup

Hyperthermia wikipedia , lookup

Transcript
Presented by
• Rachna Bhagat
• Sergio Lopez
Heat and Temperature
Day 1
• Introductory Activity
• Start class by asking students to
answer the following question; “Why is
so hot in Las Vegas”? Make sure you
justify your answer. (Give them about
5 min).
Class Discussion
• After the 5 min. bring the
students together and discuss
their answers.
• Analyze their answers to see
what concepts they have.
• Use their correct answers to
introduce the topic of “Heat and
Temperature”
• During the discussion, on the board
write their answers to the question,
even the answers that are incorrect,
and have them write it on their
notes.
• At the end of the lesson on the
second day, the class will go over
the answers and determine if they
are correct.
Vocabulary Builder
• In their Vocabulary booklets the
students will make 4 columns,
and define the words:
• Heat
• Temperature
• Kinetic Energy
Exploration Lab:
“Can you Take the Heat”
• Challenge: Why, or why not,
does one drop of boiling water
at 100 oC burn your hand?
• Note: Students will collect data
as the water boils (optional).
Guided questions for
exploration lab:
1.Why, or why not, does one drop of boiling
water at 100 oC burn your hand?
2.Would you burn your hand if you poured the
entire beaker of 100 oC of boiling water on
your hand? Why or why not?
3.What is being transferred from the water to
your hand?
4.How does energy transfer from the water to
hand or form any one object to another?
Reinforcing Vocabulary
• In their Vocabulary
booklets, the
students will write
in their own
definitions for the
words, and draw a
picture to describe
each word:
• Temperature
• Heat
• Kinetic Energy
Analyzing & Closing
Activity
• Discuss heat, temperature,
kinetic energy, with respect to
the heating of water.
DAY 2
Introductory Activity
Read article about the factors
that affect the temperature in
Las Vegas.
Make a concept map using
the factors that heat the
Las Vegas Valley.
Vocabulary Builder
• In their Vocabulary booklets the
students will make 4 columns
and define the words:
• Conduction
• Convection
• Radiation
Challenge: Melt an Ice
cube in 100ml of water at
room temperature and
boiling water at 100 oC
• Boil 100ml of in a beaker and
record the temperature as
water is boiling.
• Remove beaker when
temperature has reached 100
oC.
• Record the time it takes for ice
to melt in each beaker.
Analysis
• What makes the water on the heating plate
hot, and its temperature rise?
• How is energy being transferred from:
(a) heating plate to beaker
(b) beaker to water
(c) water to thermometer
(d) water to thermometer
• Describe the color of the hot plate after
boiling the water.
• What form of energy transfer is causing
the
heating plate to change color?
Reinforcing Vocabulary
• In their Vocabulary
booklets, the
students will write
in their own
definitions, and
draw pictures for
the words:
• Conduction
• Convection
• Radiation
Synthesizing & Closing
Activity
• The students will answer the
original journal question “ Why
is it so hot in Las Vegas”?
again.
• They will compare this answer
with the original answer to
determine, if it was correct
or incorrect?
Student Misconceptions
• Heat is a substance which can
be added to or removed from an
object. (misconception)
• The sensation of coldness is
due to transfer of cold toward
the body. (misconception)
• Heat is the opposite of cold.
NV Science Content
Standards
• P.12.C.5 Students know the relationship
between heat and temperature. I/S
• Prior Knowledge:
• P.2.C.2 Students know objects can be
described as hot or cold relative to another
object. I/L
• P.5.C.4 Students know heat can move from
one object to another by conduction, and
some materials conduct heat better than
others.E/S
• P.8.C.5 Students know heat energy flows
from warmer materials or regions to cooler
ones through conduction, convection, and
radiation. E/S
CCSD Syllabus Objective
• 7.1 The student will differentiate
between heat and temperature.
• 7.2 The student will discuss the
kinetic molecular theory of matter.
• 7.3 The student will describe how
heat is related to molecular
movement.
• 7.5 The student will illustrate the
three methods of heat transfer
Justification
• Students will learn that heat is the
transfer of energy from an area of
high energy to low energy.
• Temperature is the measure of the
average kinetic energy.
• Heat can be transfer by conduction,
convection, and radiation.