Martian regolith is the layer of dust and rock fragments that covers the surface of Mars. It is characterized by its reddish color due to the high content of iron oxides and by being composed of fine particles that have been formed after millions of years of micrometeorite impacts and geological processes.

In this activity, students will work with a simulation of Martian regolith in the school laboratory, with the aim of isolating and analysing particles using simple tools (magnets, petri dishes, microscopes). They will take on the role of space scientists studying samples sent from Mars, learning to observe, classify and record what they find.

RECOMMENDED AGE: 12–15 years

LOMLOE COMPETENCIES:

• Competence in science, technology and engineering
• Entrepreneurial competence
• Citizenship competence
• Personal, social and learning to learn competence

DIDACTIC OBJECTIVES:

• Understand what Martian regolith is and how it was formed.
• Explore their simulated physical characteristics (color, texture, magnetic particles).
• Apply observational skills, scientific analysis, and data recording.
• Reflect on the challenges of investigating planetary samples in real missions.

MATERIALS (per team):

• Sample of simulated Martian regolith (reddish volcanic sand or commercial educational sample) mixed with micrometeorites collected on Earth.
• Reusable cups.
• Strong magnet (e.g., neodymium).
• Petri dish or white dish.
• Microscope or magnifying glass.
• Precision tweezers.

INCLUSION:

• Adaptable to students with motor disabilities (group work and manipulative tools).
• Adaptable to students with visual impairment (use of tactile elements and high visual contrast).
• Rotating roles so that each student can participate according to their abilities.