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Mars Rover-Exploring Mars Geology
Lab 1 - Collect a Martian Rock Sample

Teacher Portal

Materials Needed

The following is a list of all the materials that are needed to complete the VEX GO Lab. These materials include student facing materials as well as teacher facilitation materials. It is recommended that you assign two students to each VEX GO Kit.

In some Labs, links to teaching resources in a slideshow format have been included. These slides can help provide context and inspiration for your students. Teachers will be guided in how to implement the slides with suggestions throughout the lab. All slides are editable, and can be projected for students or used as a teacher resource. To edit the Google Slides, make a copy into your personal Drive and edit as needed.

Other editable documents have been included to assist in implementing the Labs in a small group format. Print the worksheets as is or copy and edit those documents to suit the needs of your classroom. Example Data Collection sheet setups have been included for certain experiments as well as the original blank copy. While they offer suggestions for setup, these documents are all editable to best suit your classroom and the needs of your students.

Materials Purpose Recommendation

Pre-built Code Base - Eye + Electromagnet

For demonstration purposes. 1 for demonstration


To build the Code Base - Eye + Electromagnet and use the Disks for Lab activities. 1 per group

Code Base Build Instructions (PDF) or Code Base Build Instructions (3D)

To build the Code Base. 1 per group

Code Base - Eye + Electromagnet Build Instructions (PDF)

To add the Eye Sensor and Electromagnet to the Code Base. 1 per group

Tablet or Computer 

To access VEXcode GO. 1 per group

VEXcode GO

For students to build projects for the Code Base. 1 per group

Lab 1 Image Slideshow

Google Doc / .pptx / .pdf

For visual aids while teaching. 1 for class to view

Robotics Roles & Routines

Google Doc / .docx / .pdf

Editable Google Doc for organizing group work and best practices for using the VEX GO Kit. 1 per group


For students to fill out the Robotics Roles & Routines checklist. 1 per group

Pin Tool

To help students remove pins or pry beams apart. 1 per group

VEX GO Field Tiles and Walls

To use as a testing area for the Code Base. 4 Tiles and 8 Walls per testing area

Dry erase marker 

To mark the locations of the Disk and base on the Field. 1 per group

White board eraser

To erase the marker on the Field at the end of the Lab. 1 per group


Begin the lab by engaging with the students.

  1. Hook

    What is a Planetary Geologist? How do you think they use the tools and sensors on the rover to help them learn about Mars geology?

  2. Leading Question

    How can we use the sensors on our Code Base rover, like the Electromagnet, to help us collect samples, like the Mars rover does?

  3. Build Code Base - Eye + Electromagnet


Allow students to explore the concepts introduced.

Part 1

Students will test the Electromagnet on the Code Base rover, by building a project together with the teacher to drive to a Disk, collect it with the Electromagnet, and return it to the Mars Base.

Mid-Play Break

How does the Electromagnet work in our project? What blocks control the Electromagnet? What if you needed to collect a Disk from a different location? How could you change your project? What parameters would you change?

Part 2

Students will iterate on their projects from Play Part 1, to collect a Disk from a different location and return it to the Mars Base.


Allow students to discuss and display their learning.

A VEX GO character

Discussion Prompts