OSE 8.3 L3

Multiple Choice

Is the coil of wire a magnet when it is connected to a battery?

• Yes

• No

Open Ended

Why or why not?

Slide B

Navigation

How does energy move through the system
if the parts aren’t touching?

Turn and Talk

Open Ended

How does energy move through the system if the parts aren’t touching?

Slide C

In your notebook …

Initial Ideas

?

My initial ideas

How does energy transfer between
things that are not touching?

Record the lesson
question. Below, jot
down your initial
ideas about what
could be happening
in the space
between the
magnets.

Open Ended

What could be happening in the space between the magnets.

Slide D

Cause and Effect

Change to the system
(cause)

The effect on the system

If

moving air
transfers energy
between the
magnets

then

when we

we will
observe

Slide E

Cause-Effect Relationships

What cause-effect relationship(s) do we predict we
will observe if this explanation is true?

Change to the system
(cause)

The effect on the system

If

moving air
transfers energy
between the
magnets

then

when we

we will
observe

If

moving air
transfers energy
between the
magnets

then

when we

we will
observe

Slide F

What is a hypothesis?

Prediction: an educated guess about what you think is going
to happen

Theory: a how or why explanation for a phenomenon

When your cause-effect prediction can be used to evaluate a
theory about a phenomenon, scientists call it a hypothesis.

Example hypothesis: How will I know if someone is home?
If someone is home (theory), then when I knock on the door
(cause), I will observe footsteps coming toward me (effect).

Slide G

How can we test these cause-effect relationships
to establish whether air is involved in energy
transfer through magnetic forces?

Plan Investigations

?

Slide H

Investigation Part 1

Independent
variable

This is the change we make
to the system each time we
test.

Dependent
variable

This is the variable to
observe or measure for
effects caused by a change
in the independent variable.

Controlled
variable

This is a variable we want to
keep the same in each test.
There could be more than
one in a test.

Slide I

Do our results support the theory that air is
involved in the transfer of energy through
magnetic forces?

Interpreting Our Evidence

Object between magnets Effect on energy transfer through magnetic

forces

Note card

Piece of cardboard

[Other objects used]

Slide J

Record Our Observations

● What happens to the music in a vacuum?
● What happens to the magnetic forces in a vacuum?

Investigation Part 2

Slide K

Turn and Talk

Did we observe in the demonstration or the
video any of the predicted cause-and-effect
relationships that would support this theory?

Our Hypotheses

Slide L

Home Learning

Construct an argument about why the
music and magnets behave this way in the
vacuum.

Include

● aclaim that answers the question,

● evidence from the video or other investigations,

and

● reasoning that justifies why your evidence supports

your claim.

Constructing an Argument from Evidence

Open Ended

What could be happening in the space between the magnets when they pull each
other or push each other away if energy is not transferring through air?

Open Ended

How might we be able to collect evidence to help us understand what is going on in that
space between two magnets?