(10 minutes) Have two bunged test Hydrogen, oxygen, and water tubes of hydrogen, two bunged test tubes of oxygen, and two bunged test tubes of water, all labelled with their contents. Wearing eye protection, put a glowing splint into each sample. Note observations (oxygen: splint re-lights, hydrogen: no effect, water: splint goes out). Repeat with a lighted splint (oxygen: splint burns slightly brighter, hydrogen: a squeaky pop is heard, water: splint goes out). Ask students to suggest how the properties of the elements relate to the compound that they make (no relation). Ask students to draw particle models to show hydrogen, oxygen, and water. Plenaries Show-me boards (5 minutes) Give students an A4 dry-wipe board, pen, and eraser. Ask students to write the correct symbol for one of the first 20 elements, or the symbol of one of the named elements you call out. Atoms (10 minutes) Interactive where students label a periodic table then summarise the difference between atoms, elements, and compounds. Encourage students to give examples of elements and compounds. Lesson C1.2 Chemical equations WS: 1.2
Hydrogen, oxygen, and water (10 minutes) Have two bunged test tubes of hydrogen, two bunged test tubes of oxygen, and two bunged test tubes of water, all labelled with their contents. Wearing eye protection, put a glowing splint into each sample. Note observations (oxygen: splint re-lights, hydrogen: no effect, water: splint goes out). Repeat with a lighted splint (oxygen: splint burns slightly brighter, hydrogen: a squeaky pop is heard, water: splint goes out). Ask students to suggest how the properties of the elements relate to the compound that they make (no relation). Ask students to draw particle models to show hydrogen, oxygen, and water. Plenaries Show-me boards (5 minutes) Give students an A4 dry-wipe board, pen, and eraser. Ask students to write the correct symbol for one of the first 20 elements, or the symbol of one of the named elements you call out. Atoms (10 minutes) Interactive where students label a periodic table then summarise the difference between atoms, elements, and compounds. Encourage students to give examples of elements and compounds. Lesson C1.2 Chemical equations WS: 1.2