Candy Bar Lab
Everything in BOLD needs to be in your NB
0. Wash (with soap) and dry your hands.
Bring a dry paper towel back with you to your desk.
1. Remove the wrappers from your candy bars. Place the two candy bars on one of the two paper towels at your table.
2. Position each candy bar tightly side by side (long sides together). Holding both ends of each candy bar, slowly slide the candy bars past each other, making sure they are in contact. Look carefully at the contact surface.
a. Title this action #2 SLIDING in you NB
b. SKETCH & DESCRIBE your observations in your NB
c. DRAW ARROWS on your candy bar sketch to show which way each piece moved.
d. EARTH EVENTS: what kind of earth events may happen in this type of plate interaction/boundary?
3. Put your own candy bar on your paper towel. Grasping each end, slowly pull on it short of pulling it apart. You may have to break it first. Separate the parts by a few millimeters.
a. Title this action #3 PULL APART
b. SKETCH & DESCRIBE your observations in your NB
c. DRAW ARROWS on your candy bars to show which way each part moved.
d. EARTH EVENTS: what kind of earth events may happen at this plate interaction/boundary?
4. Line up each half of the candy bar again. Holding each end, slowly and forcefully push the pieces into each other.
a. Title this action #4 COLLISION
b. SKETCH & DESCRIBE in your NB what happens.
c. DESCRIBE the formation that results from this collision. (Think of some earth surface structures…)
d. DRAW ARROWS on your candy bars to show which way each piece moved.
e. EARTH EVENTS: What kind of earth events may happen at this plate interaction/boundary?
5. Bite off an end of your candy bar.
a. Title this part #5 CROSS SECTION.
b. SKETCH & label the interior parts of the candy bar.
c. SKETCH & label the candy bar as if it were Earth.
6. Make a “ T “ chart in your NB. Title one side “Good things about a Milky Way Bar” and the other side “Bad things about a Milky Way Bar”, like pros and cons of a Milky Way. List some things that make Milky Way a good model for 1) the actions performed and 2) the Earth’s interior structure, and a list of things that make a Milky Way a bad model for 1) the actions performed and 2) the Earth’s interior.
Developing Understanding: Grading Scale: Make sure you have done the following:
Candy Bar Lab: ___/8
Do the Milky Way plate boundaries lab and include the following:
___ /6 Drawings of the candy bars, the directions of movement, and changes in the layers
___ /2 The possible Earth events at each plate boundary listed for each step/stage.
Name ______Hr ____ Score ____/8
There are 3 kinds of motion at the 3 types of plate margins that create different effects/activities and topographies:
Check out the diagram above and this video to learn more about “plate tectonics:
http://www.bozemanscience.com/plate-tectonics/
Then, try this activity….
In this lab, you will simulate the 3 kinds of activity at plate boundaries and their
consequences using a candy bar. Follow the directions and use the space provided
to picture and demonstrate your understanding.
Candy Bar Lab
Steps:
0. Wash (with soap) and dry your hands.
Bring a dry paper towel back with you to your desk.
1. Remove the wrappers from your candy bars. Place the two candy bars on one of the two paper towels at your table.
2. Position each candy bar tightly side by side (long sides together). Holding both ends of each candy bar, slowly slide the candy bars past each other, making sure they are in contact. Look at the contact surface.
a. This action is titled #2 SLIDING
b. SKETCH & DESCRIBE your observations in the box below.
c. DRAW ARROWS on your sketch to show which way each piece moved.
d. CONSEQUENCES: What kind of earth events may happen in this type of plate interaction/boundary?
Formations created? ______
3. Put your own candy bar on your paper towel. Grasping each end, slowly pull on it short of pulling it apart. You may have to crack it first. Separate the parts by only a few millimeters.
a. Title this action #3 PULL APART
b. SKETCH & DESCRIBE your observations in the box below.
c. DRAW ARROWS on your candy bars to show which way each moved.
d. CONSEQUENCES: What kind of earth events may happen in this type of plate interaction/boundary?
Formations created? ______
4. Line up each half of the candy bar again. Holding each end, slowly and forcefully push the pieces into each other.
a. This action is titled #4 COLLISION
b. SKETCH & DESCRIBE what happens in the box below.
c. DESCRIBE the formation that results from this collision.
(Think of some actual earth surface structures…)
______
d. DRAW ARROWS on your candy to show which way each piece moved.
e. CONSEQUENCES: What kind of earth events may happen in this type of plate interaction/boundary?
Formations created? ______
5. Bite off and eat one end of your candy bar. Look at the end you bit into.
a. This part is titled #5 CROSS SECTION.
b. SKETCH & label the interior parts of the candy bar.
c. SKETCH & label the candy bar as if it were the actual Earth.
6. Use the “ T “ chart below. One side is titled “Good things about a Milky Way Bar” and the other side “Bad things about a Milky Way Bar”, like pros and cons of a Milky Way. List some things that make a Milky Way a good model for the 1) actions performed and 2) the Earth’s interior structure and a list of things that make a Milky Way a bad model.
Milky Way-Earth model
Good things about a Milky Way Bar Bad things about a Milky Way Bar
1. 1.
2. 2.
3. 3.
Developing Understanding: Grading Scale: Make sure you have done the following:
Candy Bar Lab: ___/8
Do the Milky Way plate boundaries lab and include the following:
___ /6 Drawings of the candy bars, the directions of movement, and changes in the layers
___ /2 The possible Earth events at each plate boundary listed for each step/stage.