# Cells and Systems Match-Up

Every organism, from a single bacterium to a whale, is built from the same basic unit: the cell. In Grade 8, you investigate living things and apply scientific ideas to interpret their general structure, function and organization, including how different organisms have similar functions that are met in a variety of ways. This game reviews key terms from that unit related to living things and their structure and function. Understanding how these words connect is central to seeing living things as balanced systems ([Topic](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/17317)).

## How to play

1. Look at the term list and the definition list below.
2. Match each term to its correct definition by writing the matching letter or number beside it.
3. Every term has exactly one correct match. Work through the ones you know first, then use the process of elimination for the rest.
4. Check your answers against the answer key only after you finish.

| Column A | | Column B |
|:---|:---:|:---|
| **A.** organism | ____ | **1.** Involves the lungs and airways |
| **B.** tissue | ____ | **2.** Examples include the heart, lungs, and stomach |
| **C.** organ | ____ | **3.** Type of diffusion involving water |
| **D.** diffusion | ____ | **4.** Found in both plant and animal cells; controls the movement of materials into and out of the cell |
| **E.** osmosis | ____ | **5.** A complete living thing made up of one or more cells |
| **F.** membrane | ____ | **6.** Involves the heart and blood vessels |
| **G.** respiration | ____ | **7.** Made up of cells; found in organs |
| **H.** circulation | ____ | **8.** Movement of particles from an area of higher concentration to lower concentration |

## Answer key

- **A** matches **5** (organism: A complete living thing made up of one or more cells)
- **B** matches **7** (tissue: Made up of cells; found in organs)
- **C** matches **2** (organ: Examples include the heart, lungs, and stomach)
- **D** matches **8** (diffusion: Movement of particles from an area of higher concentration to lower concentration)
- **E** matches **3** (osmosis: Type of diffusion involving water)
- **F** matches **4** (membrane: Found in both plant and animal cells; controls the movement of materials into and out of the cell)
- **G** matches **1** (respiration: Involves the lungs and airways)
- **H** matches **6** (circulation: Involves the heart and blood vessels)

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*AILI game · language en · model claude-sonnet-5 · generated 2026-09-17 · id 80a39959-7852-4661-aad7-a72e59724267*

### Sources

- node:n1: Sciences › Science (7–9) › Grade 8 › Unit B: Cells and Systems › Outcomes for Science, Technology and Society (STS) and Knowledge (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/17319)
- node:n2: Sciences › Science (7–9) › Grade 8 › Unit B: Cells and Systems › Outcomes for Science, Technology and Society (STS) and Knowledge (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/17320)
- node:n3: Sciences › Science (7–9) › Grade 8 › Unit B: Cells and Systems › Outcomes for Science, Technology and Society (STS) and Knowledge (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/17320)
- node:n4: Sciences › Science (7–9) › Grade 8 › Unit B: Cells and Systems › Outcomes for Science, Technology and Society (STS) and Knowledge (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/17319)
- node:n5: Sciences › Science (7–9) › Grade 8 › Unit B: Cells and Systems › Outcomes for Science, Technology and Society (STS) and Knowledge (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/17321)
- node:n6: Sciences › Science (7–9) › Grade 8 (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/17317)