Fully resourced 2-hour lesson on Elephant’s Toothpaste. A lovely chemical reaction lesson for all ages using everyday things. Presentation and worksheets included in the package alongside all answer sheets, risk assessment and lesson plan. This lesson is a great way to both introduce the idea of chemical reactions and to wow your class with a fun and engaging activity. I have tested this with my own class and you can find pictures of the activity in the preview. All you need is: 2 x 500ml bottles yeast warm water food coloring (colouring) liquid dish soap (washing-up liquid) 3% and 6% hydrogen peroxide funnel