|Name of Activity||Cracking the Crust|
|Keywords||school bus, crust, earth, rock, NXT|
|Grade Level||K, 1, 2, 3, 4, 5, 6|
|Time||2 Hours Total|
|Brief Description||Students will use their “School Buses” that they built in lesson 1 to complete a tour through the crust of the Earth.|
|Lesson Objectives:||- To identify the crust and recognize there are three distinct layers of crust: sedimentary rock, metamorphic rock, and igneous rock.
- To learn the order of the layers and specific features of each later of crust.
- To correctly program the “School Bus” to stop at each layer for a given period of time.
|Materials Needed:||- Pre-constructed “School Buses” (from lesson 1)
- LEGO NXT kits
- Magic School Bus: Inside the Earth by Joanna Cole
- Simulated Earth crust material:
– wooden base
– sandpaper (sedimentary rock)
– bubble wrap (metamorphic rock)
– gravel (igneous rock)
- Saran Wrap
- ‘How Will We Crack the Crust?’ Planning Worksheet
- ‘Cruising Through the Crust’ Programming Worksheet
|Preparation and Set Up:||Set up the layers of the crust:
– There should be a layer of saran wrap as the outer crust that the vehicle will need to break through. You can support this with popsicle sticks/pencils.
– The NXT will drive over the other material, so make a track with each layer farther away from the saran wrap starting with the sandpaper and ending with the gravel.
- Collect building materials.
- Photocopy one worksheet for each student.
- Arrange students in groups of 2 – 4.
- Distribute materials to groups.
|Extensions or Modifications:||- Have students design and attachment to scoop up samples of each rock type.
- Have students create a brochure for the Magic School Bus Inside the Earth tour.
- Describe the vehicle and what you might observe on the tour.
- Send a postcard from a layer of the crust incluiding an illustration of what you saw and written explanation of your experience.