Make a UV Detector

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In this activity, learners use tonic water to detect ultraviolet (UV) light from the Sun and explore the concept of fluorescence. Learners will compare detectors using tap water and tonic water to observe differences in light from a flashlight and the Sun. Step-by-step instructions are included with photos along with important safety guidelines. This activity needs a sunny day. Activity guide includes a "What's going on?" explanation and connections to relevant science concepts like the difference in light sources, ultraviolet light, fluorescence, and quinine (a substance sensitive to ultraviolet light).

Quick Guide

Preparation Time:
5 to 10 minutes
Learning Time:
5 to 10 minutes
Estimated Materials Cost:
$1 - $5 per group of students
Age Range:
Ages 6 - adult
Resource Type:
Activity
Language:
English

Materials List (per group of students)

  • two clear cups (plastic or glass)
  • tonic water
  • tap water
  • flashlight
  • black piece of paper
  • pen
  • two index cards
  • tape
  • hardcover book

Keywords

Subjects

  • Earth and Space Science
    • Earth Structure
    • Earth, Moon and Sun
  • Physical Sciences
    • Vibration and Waves
      • Light and Optics
    • Light and Optics
      • Electromagnetic Spectrum
      • Sunlight and Color

Informal Categories

  • Outdoor Activity

Audience

To use this activity, learners need to:

  • see

Learning styles supported:

  • Involves hands-on or lab activities

Other

This resource is part of:

Access Rights:

  • Free access

By:

Source Collection

  • DIY Science Apps

Rights:

  • , The Regents of the University of California, 2014

Funding Source:

  • NASA, NNX10AE05G