Tests for cations and anions

I recently created a set of matching cards for a student who was struggling with answering exam questions on tests for anions and cations (click here to download). I´m also going to use them during revision lessons with GCSE students.

I wish you great lessons!

Karolina


Where can you use this resource?

Source: Cambridge iGCSE Combined Science Specification, p. 31

Source: Edexcel iGCSE Chemistry (9-1) Specification, p.20

Source: OCR GCSE (9-1) Gateway Science Chemistry A Specification, page 36

Source: Edexcel GCSE (9-1) Chemistry Specification, p.36

Electrolysis

I really like to teach my students how to use less reagents (click here to see my precipitation reactions worksheet). Microscale chemistry offers a great way to do so. While doing Teaching Practical Science: Chemistry course from the National STEM Learning Centre, I learnt an easy way to conduct electrolysis using less reagents. The set-up includes using a Petri dish:

Petri dish contains sodium chloride solution and universal indicator

Once the electricity is flowing through the circuit, the changes are easy to observe almost immediately:

The same set-up can be used to conduct electrolysis of copper (II) sulfate solution:

An alternative to the graphite electrodes are ordinary pencils sharpened at both ends. 

Click here to get the worksheet for this experiment.

I wish you great lessons!

Karolina

Let YouTube help you teach Science #10

Throwback to the 80s with the Classification Rap song! I absolutely love to use this video in revision lessons. Added bonus: it´s really hilarious to hear the students humming the song during tests!

Which topic/s could you use this video with?
- AQA - 4.6.4 Classification of living organisms
- Edexcel - Topic 4: Natural selection and genetic modification
- OCR - B5.2b describe the impact of developments in biology on classification systems

Key words: class, classification, family, genus, kingdom, order, phylum, species, taxonomy

I wish you great lessons!

Karolina