CLEAPSS Supporting practical science and technology
CLEAPSS Resources
Latest Resources
Search For:
Showing results 1 to 10 of 110
1 234

Members only resource Click to download Document.
Illustrated guidance on preparing bacterial slides and then gram staining them to discern gram positive and gram negative examples.
words matched: gram-negative

Members only resource Click to download Document.
Guidance on preparing the stains needed for gram staining - to distinguish between Gram-positive and Gram-negative bacteria.
words matched: gram-negative

Members only resource Click to download Document.
The additional negative ions test tube reactions for nitrate(III), nitrate(V), sulfate(IV), phosphate and carboxylates (methanoate and ethanoate).
words matched: gram-negative

Members only resource Click to download Document.
Guidance on the preparation of reagents used to test for the presence of anions. This Recipe only includes those reagents that are not covered by other Recipe Sheets.
words matched: gram-negative

Members only resource Click to download Document.
The common negative ions, carbonate (CO32-), sulfate(VI) (SO42-) and the halides (Cl–, Br– and I–) can be simply tested for in test tube reactions. The method described here uses a more dilute ammo.. more
words matched: gram-negative

Members only resource Click to download Document.
Common anions are tested on a plastic covered worksheet, for quick easy disposal. Using solutions with minimum concentrations allows closer observations and initiates talking points. Students can phot.. more
words matched: gram-negative

Free resource Click to view on YouTube
Testing for negative ions - phosphate(V) ions
words matched: gram-negative

Free resource Click to view on YouTube
Testing for negative ions - carbonate ions
words matched: gram-negative

Free resource Click to view on YouTube
Testing for negative ions - sulfate(VI) ions
words matched: gram-negative

Free resource Click to view on YouTube
Testing for negative ions - halide ions
words matched: gram-negative

Showing results 1 to 10 of 110
1 234