A Slice of Apple Fly

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In this activity, learners build an instrument for catching and observing flies. Learners act as entomologists, attract flies into a jar using a slice of apple, and then observe the flies' behavior. Learners distinguish between male and female flies and study fly reproduction. The learning time for this activity can vary significantly, depending on how long learners want to observe the flies. Learners release the flies outside at the end of the activity.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
1 to 4 weeks

Estimated Materials Cost:
$1 - $5 per group of students

Age Range:
Ages 4 - 18

Resource Type:


Materials List (per group of students)

  • A slice of apple
  • A big glass jar or plastic container
  • A big plastic funnel
  • A paper towel
  • A piece of scrap paper
  • A rubber band


  • Life Sciences
    • Diversity of Life
      • Animals
      • Classification
    • Ecology
      • Populations
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
    • Science as a Career

Informal Categories

  • Animals
  • Collecting
  • Nature and Environment
  • Outdoor Activity


To use this activity, learners need to:

  • see
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access