Power point slide shows, using particle pictures, to check understanding of the differences between elements and compounds, and atoms and molecules. Smart board interactive activity also includes mixtures with the elements and compounds, and the word match checks the meanings of keywords. Useful quick plenaries for KS3 Chemistry. Use coloured cards, moving left or right, mini white boards for students to show their answers. Can be fast paced, or repeat and reinforce definitions of key terms by picking out students who have given correct answers and asking them to explain why, scaffolding verbal answers given to enhance accuracy. Activities can also be used as starters for the next lesson, or for KS4 lessons to check prior learning. Ions word match smart board activity is also included for use with KS4.