Science 10
ARLENE P. DENAMARQUEZ
TEACHER
Objectives:
•Define hot spots
•Describe the formation of volcanic island chains like
Hawai'i
•Illustrate the movement of tectonic plates over a
stationary hot spot
•Explain how hot spots provide evidence for plate
tectonics
What causes
volcanoes to form?
Are all volcanoes
located on plate
boundaries?
ACTIVITY
DROP IT LIKE IT’S
“HOT SPOT”
Materials:
• alcohol lamp
• test tube
• test tube holder
• match
• water
• bond paper (2 sheets)
• Gloves (optional)
Procedure:
1. Attach one end of the bond paper to the end
of another bond paper.
2. Fill 3/4 of the test tube with water and heat it
over an alcohol lamp.
3. While waiting for the water to boil, place the
paper on top of the test tube. Be sure that the
two are in contact.
4. Once the water starts boiling and fumes are coming
out, hold the paper in the same position for the next 10
seconds.
5. After 10 seconds, move the bond paper very slowly
and horizontally by 10 centimeters. See to it that the
paper and test tube are still in contact.
6. Repeat step 5 after another 10 seconds and observe.
Guide Questions
Q36. What can you see on the surface of the bond paper?
Q37. Let’s say that the paper represents the Earth’s crust; what do
you think is represented by the water in the test tube?
Q38. What geologic feature do you think will be formed at the
surface of the crust?
Q39. Which of the features, at the surface of the crust, will be the
oldest? the youngest? Label these on your paper.
Q40. Which of the features will be the most active? The least active?
Label these on your paper.
https://www.youtube.com/watch?v=QO2OO1r_tFg
• A hot spot is a location in the Earth's mantle where
hot magma rises in a fixed position, creating volcanic
activity at the surface.
Not at a plate boundary – hot spots are usually found
in the middle of tectonic plates. They are caused by
plumes of hot mantle material rising toward the crust.
The mantle plume melts the crust, creating volcanoes.
As the tectonic plate moves over the stationary hot
spot, a chain of volcanoes or islands forms.
The oldest volcanoes are farther away, and newer ones
are directly above the hot spot.
The Hawaiian Islands were
formed due to volcanic
activity caused by hot spot.
The Pacific Plate moves
northwest over the
stationary hot spot.
1.Which of the ff correctly explains why the oldest
Haiiwaian island is farthest from the active volcanoes?
A.The islands are moving towards the hot spot.
B.The Pacific Plate is moving over a stationary hot spot.
C.The hot spot moves with the Pacific Plate.
D.The age of the islands is random.
The Hawaiian Islands were
formed due to volcanic
activity caused by hot spot.
The Pacific Plate moves
northwest over the
stationary hot spot.
2. If the Pacific Plate continues moving at the same speed
and direction, where will a new island form?
A. Southeast of the Big Island
B. Northwest of Kauai
C. West of Maui
D. North of Oahu
A student says:
“Hot spots only occur at
plate boundaries
because that is where
magma can rise.”
3.How would you respond to this
statement?
If you agree with the statement, explain
why you say so?
