Cell Evidence Investigation

Name:

Date:

Part 1: Record Cell Evidence

Directions: Observe each image, slide, or model without guessing. Record visible features and at least two observations. Then decide whether the evidence supports the claim that the sample is cellular.

Word bank: cell, boundary, nucleus, membrane, organism, cellular, non-cellular, observation, evidence

Sample 1: Plant cell

Source type: Prepared slide / microscope image / model

Visible features: ________________________________________________

Observation 1: ___________________________________________________

Observation 2: ___________________________________________________

Does the evidence support a cellular claim?

Yes

Evidence: ________________________________________________________

Sample 2: Animal cell

Source type: Prepared slide / microscope image / model

Visible features: ________________________________________________

Observation 1: ___________________________________________________

Observation 2: ___________________________________________________

Does the evidence support a cellular claim?

Yes

Evidence: ________________________________________________________

Sample 3: Microbial cell

Source type: Prepared slide / microscope image / model

Visible features: ________________________________________________

Observation 1: ___________________________________________________

Observation 2: ___________________________________________________

Does the evidence support a cellular claim?

Yes

Evidence: ________________________________________________________

Sample 4: Non-cellular object

Sample name: salt crystal / fiber / other: __________________________

Source type: Image / model / classroom object

Visible features: ________________________________________________

Observation 1: ___________________________________________________

Observation 2: ___________________________________________________

Does the evidence support a cellular claim?

Yes

Evidence: ________________________________________________________

Part 2: Sketch and Explain

5. Sketch one cellular sample. Label at least two visible or modeled features.

6. Compare two cell types. What do they have in common, and how are they different?

Sentence starter: Both __________ and __________ have __________. However, __________.

7. Read the paragraph, then compare it with the image or model provided by your teacher.

Science text: Organisms are made of one or more cells. Cells are small structures with boundaries and internal parts. Plant, animal, and microbial cells may look different, but each cell has structures that help it function as part of a living organism.

Claim: The sample is cellular because ____________________________________________

Text evidence: The text says ___________________________________________________

Visual or model evidence: I observe ____________________________________________

Reasoning: This supports the claim because ____________________________________

Part 3: Exit Prompt

8. Explain how one observation supports the idea that organisms are made of cells. Compare one cellular sample with the non-cellular object.

Sentence starter: My observation was __________. This supports the idea because __________. Unlike the cellular sample __________, the non-cellular object __________.