Microorganisms Activity Set – Free Printable Science Worksheets for Elementary Students
This Microorganisms Activity Set is a fun and engaging way to introduce elementary students to the world of tiny living organisms. With interactive worksheets, diagrams, labeling, and vocabulary practice, kids will explore the different types of microorganisms, bacteria, viruses, fungi, algae, and protozoa, while building essential science and reading comprehension skills.
As a homeschooling mom of four, including one autistic child, I’ve designed countless printable packs that support real learning without the stress. This microorganisms printable pack is one of my favorite ways to bring science alive. The activities encourage kids to ask questions, sort ideas, and explore how microorganisms play a role in our everyday lives.
My tip: Use this printable alongside a microscope activity or petri dish experiment for a full week of hands-on science!
Learning Objectives – What Kids Will Learn
The free printable science pack helps elementary students:
- Understand what microorganisms are and where they’re found
- Identify five types of microorganisms: fungi, bacteria, viruses, algae, and protozoa
- Compare and contrast bacteria and viruses using a Venn diagram
- Strengthen vocabulary and spelling through word search and fill-in-the-blank activities
- Practice comprehension and recall with short answer and labeling tasks
The set supports early science instruction, reading comprehension, and critical thinking skills in a hands-on format.
What’s Included in the Microorganisms Printable Pack
The printable set includes:
- Anatomy of a Bacteria diagram with labeling activity
- Descriptions and identification pages for five types of microorganisms
- Fill-in-the-blank worksheet with word bank
- Microorganisms word search
- Bacteria vs. Viruses Venn diagram
- Write-in comprehension activity on each type of microorganism
- Answer keys included for easy self-check or review
Each page is designed to be visually engaging and easy to follow, making it perfect for independent or small group use.
How to Use These Microorganism Worksheets
The microorganism worksheets for elementary science work well in:
- Science centers or unit studies
- Independent reading and comprehension stations
- Group projects and hands-on investigations
- Sub plans or weekly science folders
Kids can:
- Color the diagrams while labeling parts of a bacterial cell
- Search for science terms in the word search
- Sort facts about bacteria and viruses in the Venn diagram
- Write their own definitions or examples based on what they’ve learned
Best Age and Grade Level for This Science Printable
The printable is best suited for:
- Grades 2–5, depending on your child’s science background
- Ideal for homeschool learners, classroom science lessons, and special education support
- Works well with ELL students when used with vocabulary scaffolds
Prep Instructions – Just Print and Go
This printable pack is low prep:
- Print the worksheets you need
- Use the included answer key for easy grading or review
- Laminate diagrams or place in dry erase pockets for reusable labeling practice
- Optional: pair with a magnifying glass or microscope activity to bring the content to life
Suggested Materials
Recommended supplies to have on hand:
- Pencils, crayons, or colored pencils
- Scissors and glue (optional for any extensions)
- Laminator or dry erase pockets
- Magnifying glass or microscope (optional but fun)
- Science notebooks or folders to keep completed work
- Do check our Amazon Store Front for all things we use in our schooling.
Download Your Free Microorganisms Printable
The Microorganisms Activity Set is a flexible and easy way to teach early biology concepts in a way that’s clear, engaging, and hands-on. Perfect for science units at home or in the classroom!
