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Taste in Space

Your Mission: Explore taste sensations on the tongue and experiment to see which senses influence taste.

For astronauts, all their food and drink needs to be carried to the International Space Station (ISS). Eating is an important part of crew morale and the one communal time when they share both a meal and talk with each other. The reduced gravity conditions on the ISS and the confined space means that there are physiological and environmental effects when it comes to being able to enjoy the taste of food.
In this activity, teams will explore taste sensations on the tongue, and conduct experiments to see which senses influence taste.
Skills
Scientific Methodology, Communication, Teamwork, Problem-solving
Learning Objectives:
  • Conducting an experiment to see where on the tongue
    students can identify the five basic taste sensations.
  • Understand why the basic taste sensations evolved in
    humans.
  • Learn how an astronaut experiences the changes in taste intensity before and during a mission.
  • Understand how reduced gravity affects the human body.
  • Analysing information to come up with a conclusion.
Equipment

Part 1:

  • 4 clean containers, at least
  • 1 L in size, labelled 1 to 4
  • Salt
  • Sugar
  • Lemon Juice
  • Grapefruit Juice
  • Drinkable water
  • Plastic Cups
  • Per Group of 2:
    • 4 small disposable cups + water to rinse mouth
    • 4 droppers
    • 1 marker
    • Student worksheets
    • Small hand mirror
    • magnifying glass

Part 2:

Per student:

• Safety glasses or goggles
• Disposable gloves (optional)
• Student worksheets and data table

Per group:

• 6 covered containers labelled 1 to 6
• 3 droppers or syringes
• 3 plastic spoons
• Water (to rinse out mouth)
• Blindfold
• Pair of disposable gloves (optional)

Time
1 hour 15 mins lesson
 
Resource available in:

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