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Science · Grade 6

Cells and Organism Systems

Learners examine the evidence behind cell theory, use microscope calculations for total magnification and image size, and compare plant and animal cells by matching cell parts to their jobs. They order the levels of organisation from cell to organism, explain how body systems work together during exercise and eating, and compare how unicellular and multicellular organisms carry out life functions.

  • 5 lessons
  • About 125 minutes
  • Cells and organism systems check: 11 questions
  • Ways to answer: fill in the blanks, choose an answer, highlight a text, label a picture, match pairs and type a number
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What learners will discover

  • State the three ideas of cell theory, use microscope evidence that living things are made of cells, and calculate total magnification and image size.
  • Compare plant and animal cells and match the main cell parts to their functions.
  • Order the levels of organisation from cell to organism and explain, with evidence, how body systems interact to keep an organism alive.
  • Distinguish unicellular from multicellular organisms and explain how single cells and specialised cells carry out life functions.

Lessons

  1. Cell theory and the evidence 7 steps3 practiceabout 22 min
  2. Using a microscope 8 steps5 practiceabout 22 min
  3. Inside cells: parts and jobs 8 steps5 practiceabout 25 min
  4. From cells to body systems 8 steps5 practiceabout 25 min
  5. One cell or many 8 steps5 practiceabout 22 min
  6. Cells and organism systems check 11 questions at the end

Keep exploring

Games to practice with

  • Marble MountainLay straights, curves, drops and splitters to roll marbles down the mountain.
  • Bridge LabBuild a bridge from beams, brace it with triangles, and stay on budget.
  • Circuit Workshop 3DWire up batteries, bulbs and switches on a 3D workbench.

More 6th grade science

Guide for grown-ups