Mold Lesson Plan for Elementary School

Instructor: Sharon Linde

Sharon has a Masters of Science in Mathematics

Teach your students about mold with this inquiry science lesson plan. Students will act as scientists to answer the question 'What is mold?' using our video lesson as a guide and following the scientific method to find answers and draw conclusions.

Learning Objectives

After this lesson, students will be able to:

  • pose and answer questions about mold
  • follow the scientific process to investigate mold


1 hour for core lesson, plus time to set up experiments, track data, and draw conclusions

Curriculum Standards

  • 5-PS1-3.

Make observations and measurements to identify materials based on their properties.

  • 5-PS1-4.

Conduct an investigation to determine whether the mixing of two or more substances results in new substances.

  • CCSS.ELA-Literacy.RI.5.3

Explain the relationships or interactions between two or more individuals, events, ideas, or concepts in a historical, scientific, or technical text based on specific information in the text.


Key Vocabulary

  • Fungi kingdom
  • Mold
  • Spores
  • Humidity

Warm-Up and Preparation

  • About two weeks before this lesson, divide students into partner pairs and give each a zipper baggie, apple slice and piece of bread.
  • Have students write their names on their bags so they can identify them later.
  • Show students how to set up their science notebooks for the scientific method, making a place for a question, hypothesis, etc.
  • Now have students observe the bread and apple, recording observations and making a sketch. What do they look like? What color are they?
  • Once this data is recorded, have students place the food into the baggie and spray it once with water.
  • Instruct students to zip the baggie closed and secure with tape to make sure no air escapes.
  • Have students do another sketch and observation of their bread/apple, then place the baggies in a spot where they will not be moved and that does not receive extreme heat or cold.
  • Next have students make a hypothesis about their bread/apple. What do they think will happen over time? Why?
  • Have partners formulate a question about their experiment and record in the 'Question' section of their notebooks.
  • Now have students make a hypothesis and support with reasons.
  • Show students how to set up their notebooks to collect data on their samples every day, recording what they look like in images and words.

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