Unicellular Organisms Worksheet

Name:

Date:

🔬 Part 1: Understanding Unicellular Organisms

WALT: We Are Learning To identify and describe unicellular organisms

1. What does 'unicellular' mean?

Made of many cells

Made of one cell

Made of no cells

Made of dead cells

2. Which of these are examples of unicellular organisms? (Tick all that apply)

Bacteria

Amoeba

Human

Paramecium

Oak tree

Yeast

3. Complete the sentence:

Unicellular organisms can only be seen using a _________________ because they are extremely _________.

4. How do unicellular organisms carry out all life processes?

They use different organs like humans

Everything happens in their single cell

They cannot carry out life processes

They work together in groups

📊 Part 2: Comparing Organisms

5. Fill in the comparison table below:

Unicellular Organisms:

Number of cells: ___________

Size: Usually _____________ (microscopic/large)

Examples: _____________, _____________, _____________

Multicellular Organisms:

Number of cells: ___________

Size: Can be _____________ (microscopic/large)

Examples: _____________, _____________, _____________

6. Explain how unicellular organisms reproduce:

7. Name TWO advantages of being unicellular:

1. _________________________________________________

2. _________________________________________________

🌟 Part 3: Extension Research Activity

8. Choose ONE unicellular organism to research. Write 3 interesting facts about it:

My chosen organism: _________________________

Fact 1:

Fact 2:

Fact 3:

9. Draw and label your chosen unicellular organism:

Dyslexia-friendly tip: Key words are in bold. Read questions twice before answering. Use the word bank if needed: microscope, bacteria, amoeba, reproduction, cell division, small, single

Success Criteria:

✓ I can define what unicellular means

✓ I can give examples of unicellular organisms

✓ I can explain how unicellular organisms survive

✓ I can compare unicellular and multicellular organisms

Unicellular Organisms Worksheet

Unicellular Organisms Worksheet

🔬 Part 1: Understanding Unicellular Organisms

📊 Part 2: Comparing Organisms

🌟 Part 3: Extension Research Activity

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