11-13 yrs old
Students will use code to model seafloor structures and continental motion.
October 29, 2018
World file for student use
The distribution of similar rocks and fossils across two continents provides evidence for plate motion.
Ocean structures such as ridges, fracture zones, and trenches also provide evidence of active plate tectonics.
Block commands such as replace with and fill with can be used for terraforming.
Students will be modelling seafloor structures and continental plate motion using two landmasses separated by the sea. Specifically, they will:
Fossil and Rock Distribution
Students are to use code to distribute coal (or the ore of their choice) and bone along the shore line of each continent at the same elevation to show that the continents were once connected. They will use the blocks replace with command to change sand into coal ore and gravel into bone.
This command will replace blocks relative to the player’s position. In the “from” sequence, the first number is the number of blocks left (+) or right(-) from the player. The second number is the player’s elevation, up (+) and down (-). The last number is the number of blocks forward (-) or back (+) from the player. For example . . .
. . . will replace sand with coal ore in a 3x3 square area.
Students should experiment with this and if errors are made, they just reverse the blocks and repeat the code.
Students are to replace some of the sand with coal ore (or ore of their choice) and some of the gravel with bone (fossils) at equal elevations on both continents.
Under the water, about half way between each continent students will find a trail of gold blocks. They are to use code to build a seafloor ridge ridge along the length of the trail using a shape command with a loop.
If they wrap this with a repeat loop (10x) sand blocks will continue to fall behind them as they follow the path to the end. They can repeat this command until they have created a ridge.
Students should add a second ridge going in a different direction. As an added feature magma (lava) can be added to the top of the ridge.
Use the blocks fill with command to create a long and deep trench on the ocean floor. Students should test it out on a small scale before attempting a larger trench. They should fill the trench with water.
Have students take photos and share via their portfolio. They could also create a video tour, highlighting each feature along the way.
Students can tour each other’s world and provide coding feedback and encouragement.
Students will demonstrate an understanding of the distribution of fossils and rocks across continents by building a model.
Seafloor structures will be created, and photographic evidence generated.
Students should be able to answer the following questions:
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