Worksheets and lesson ideas to challenge students to think about particles, states of matter, solutions and separating techniques (GCSE and Key Stage 3)
Can you boil water without heating it? The video below uses a vacuum to boil water. Students experience a ‘cognitive conflict‘ and must reconsider their ideas of boiling. This can be a useful introduction to the concept of intermolecular forces or used to challenge and develop student understanding at the end of the particles topic.
- Particle pictures and the particle model
- Elements mixtures and compounds
- Separating techniques