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Science · 9th Grade
Photosynthesis and Respiration
Two equations that are almost exact mirrors of each other.
How to use it
Write both equations side by side. The symmetry makes both easier to remember.
Free · print-ready PDF · US Letter and A4
- Grade
- 9th Grade
- Ages
- 14–15
- Subject
- Science
- Pages
- 1
The rest of the 9th Grade wall
49 more posters, all free to print — 11 of them here.
Cell TheoryThree statements that underpin the whole of biology.DNA StructureA twisted ladder, and the base pairing that makes copying possible.From Gene to ProteinTranscription then translation — two steps, two locations.Punnett SquaresPredicting offspring ratios from two parents' genes.Evidence for EvolutionFive independent lines of evidence, all pointing the same way.EnzymesBiological catalysts, and the two things that destroy them.HomeostasisKeeping the inside steady while the outside changes.Cell Structure & FunctionEvery organelle with its job, plus transport across the membrane.Periodic TrendsAtomic radius, ionisation energy and electronegativity, with arrows for each trend.Levels of Ecological OrganisationFrom one organism up to the whole biosphere.The Carbon CycleWhere carbon goes, and where humans changed the balance.