Transcript File - Science with Mr Thompson

Lesson 054
Learning Goal: (You should be able to…)
Predict a scale model of the inside of Earth
Success Criteria: (Can you …)
Draw prediction
Draw Scale model
Color code
How to organize lesson 053
The lessons Agenda was:
W to T
• Draw prediction
• Draw Scale model
• Color code
Vocabulary Terms
1.
2.
3.
4.
5.
6.
7.
8.
Direct observation.
Indirect observation.
Inference.
Seismic Waves
Crust
Mantle
Outer Core
Inner Core
1. What is the approximate thickness of the
core (inner AND outer together) in km?
2. Convert that into miles!
3. What is the core made of?
4. Which part of the core is molten/liquid
like?
5. What other characteristics do scientists
predict abut the core?
6. Why do you think the crust (a solid) floats
on the mantle (a liquid)?
7. If you are making a star wars x-wing model
‘to scale’ what does that mean?
Write to Think 054
Answer the following on lined paper…
1. What is the approximate thickness of the core (inner
AND outer together) in km?
2. Convert that into miles!
3. What is the core made of?
4. Which part of the core is molten/liquid like?
5. What other characteristics do scientists predict abut
the core?
6. Why do you think the crust (a solid) floats on the
mantle (a liquid)?
7. If you are making a star wars x-wing model ‘to scale’
what does that mean?
Truth or Myth
Truth or Myth Alert!!!!
2. The center of Earth is as hot as the surface of
the sun.
TRUE!
Core of Sun:
15,000,000 Degrees Celsius
Photosphere (Surface of Sun):
Inner Core:
6,000 Degrees Celsius 5,500 Degrees Celsius
Truth or Myth Alert!!!!
4. The crust is floating on the mantle.
TRUE!
Truth or Myth Alert!!!!
5. The center of the Earth is solid.
TRUE!
To scale model of the White House
L to R with 12 inch ruler at bottom: 1:64 MatchboxChevrolet
Tahoe, 1:43 Ford F-100, 1:25 Revell Monogram 1999 Ford
Mustang Cobra, 1:18 Bburago1987 Ferrari F40
Making a scale model drawing of
Earth’s layers (“Cheese” or “pie”
Slice!)
• WHY?: The purpose of this is to further
understand the characteristics of Earth layers
(specifically depth) by making a ‘to scale’
model of the Earth.
• This will show the relationships of the layers.
Make a Prediction about Earth’s Layers
•
•
Key:
The slice you have on the handout
represents
Crust =
Brown
a slice of Earth… think pie! Upper Mantle = Red
Lower Mantle = Orange
You will be sketching 4 boundaries
Outer and
Core 5= Yellow
layers.
Inner Core = Grey
• You will be coloring the 5 layers using a key.
• Use a piece of string with a loop to sketch the
ark of the layer, your teacher will demonstrate
in a moment.
Making a Scale Depth model of the Earth: Side 1
1. Complete “Table for
Determining Scaled
Depth of Each Layer”
–
–
–
You and your partner
should calculate each
one separately and then
check your answers
with each other.
You may use a
calculator.
See next slide on how
to complete it!
2. Check answer key 1 to
ensure you calculated
correctly.
?
30.5
30.5
12
30.5
12
30.5
12
30.5
35
Making a Scale Depth model of the Earth: Side 2
1.
Carefully sketch and label the layers on
your “Modeling Earth Layers: A Scaled
Depth…” Handout.
–
–
2.
3.
4.
5.
6.
USE A RULER to measure! It’s in cm!
Use pencil so you can erase incase you
made an error.
Check answer key 2 to ensure you drew
and labeled the layers correctly.
Color them the appropriate colors as
indicated on the previous table you
completed.
Add information about the lithosphere
and asthenosphere in pencil.
Check answer key 3 to ensure you
included the lithosphere and
Asthenosphere correctly.
Finished? Answer the questions on the
blue handout. You can find it on the front
table.
?
?
End of Lesson
Direct vs Indirect observation
• If you look at a cactus, you conclude:
– this is a cactus and it has needles or spines.
– You have observed the needles or spines. Direct.
• You know that needles or spines are sharp.
• If you look at a cactus, you conclude:
– this is a cactus, it has needles or spines, it’s sharp.
– You have observed sharpness/pain!. Indirect.
• In case of direct observations you sense the
phenomenon in question with your sensory organs
directly. In indirect observations, you sense
something intermediate that implies the
phenomenon in question.
• Intermediate obsevations can be many. The more
intermediate things there are, the more careful you
have to be with your conclusions.
Direct vs Indirect observation
• Direct observations involve looking at the actual behavior or
occurrence.
• indirect observations involve looking at a result of that
occurrence.
• For example, if you were interested in seeing how much candy
was given out by a particular neighborhood on Halloween, you
could gather the information in one of the two following ways:
• Direct observation: observe each house and count how many
candies they give out.
Indirect observation: look through trash cans the day after to
see how many empty candy bags are in each trash bin.
• Indirect observation tends to be used when the data cannot be
gathered through direct means, or when gathering the data
through direct observation tends to be too expensive or time
consuming.