SME
Grade 6 Science · Life Science
Cells as the basic unit of life
Sort living things by whether they are one cell or many cells, and things that are not made of cells at all.
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What is it made of?
Tap a card, then tap its group.
Assumptions
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Every living thing is made of one or more cells.
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Most cells are too small to see without a microscope.
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Some living things are a single cell. Others, like you, have trillions of cells of many kinds.
Topic check
See what you know: 5 questions on this topic
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More problem types
Total magnification
Use this for “A 10× eyepiece and a 40× lens: what is the total magnification?”
Cell size from the field of view
Use this for “About 20 cells fit across a 2,000 µm (2 mm) field. How long is one cell?”
Why cells stay small
Use this to see how a cube’s surface compares with its volume as it grows.
What cell theory says
Use this to sort statements that cell theory makes from ones that are not true.