What’s on the Acids and Bases poster
A definition and 5 facts worth remembering.
Acids release hydrogen ions in water; bases accept them. pH measures the concentration of hydrogen ions.
- The scale is logarithmic — each step is ten times.
- Acids taste sour and react with metals to give hydrogen.
- Bases feel slippery; soluble ones are called alkalis.
- Acid + base → salt + water. This is neutralisation.
- Indicators change colour at particular pH values.
- Acid — pH < 7
- Neutral — pH 7
- Base — pH > 7
- Stomach acid is about pH 2; soap is about pH 10.
Strong and concentrated are not the same. Strong means fully dissociated; concentrated means a lot per litre.
Questions about the Acids and Bases poster
- What’s on the Acids and Bases poster?
- A definition and 5 facts worth remembering. Acids release hydrogen ions in water; bases accept them. pH measures the concentration of hydrogen ions. The scale is logarithmic — each step is ten times.; Acids taste sour and react with metals to give hydrogen.; Bases feel slippery; soluble ones are called alkalis.; Acid + base → salt + water. This is neutralisation.; Indicators change colour at particular pH values.; Acid — pH < 7; Neutral — pH 7; Base — pH > 7; Stomach acid is about pH 2; soap is about pH 10.. Strong and concentrated are not the same. Strong means fully dissociated; concentrated means a lot per litre.
- Who is the Acids and Bases poster for?
- Acids and Bases is filed under 10th Grade (ages 15–16), so it matches what that year asks a child to remember. It is equally useful to an older student revisiting science, and to the parent or teacher answering the question at the kitchen table.
- When should you use the Acids and Bases poster?
- Each pH step is a factor of ten. pH 3 is a hundred times more acidic than pH 5. A wall chart earns its place by being glanceable from where the work is happening, so Acids and Bases belongs on the wall where that science work actually happens, within glancing distance, rather than filed away.
- What other posters go with Acids and Bases?
- Balancing Equations, Covalent Bonding and Electron Configuration sit alongside Acids and Bases in the 10th Grade set. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Balancing EquationsCovalent BondingElectron Configuration
- Is the Acids and Bases poster free to download and print?
- Yes. Acids and Bases downloads as a free PDF with no account, no email and no watermark, like everything else in the 10th Grade set. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Acids and Bases poster print at?
- Acids and Bases is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Acids and Bases loses nothing.Printing guide
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Browse every 10th Grade poster, or start from the full catalogue.