Preparation Place enough plastic plates, pipettes, dishes of salt & cups of water & food colouring out ready. Prepare enough ‘ice mountains’ for one each. Main Activity. • Sprinkle some salt on top of your ice mountain. • Wait a few minutes for the ice to cause crevasses

in the mountain. • Suck some water mixed with food colouring into a

pipette and pipe it on top of the ice. • Watch the liquid trickle into the crevasses which

show how the ice is being broken down by the salt and melted. The food colouring will trickle deep inside the ice mountain.

Differentiation: HA- Can they predict what will happen if they add different colours to the crevasses? (predict colour mixes) LA- Can they notice the difference when salt is added? Extension: Can the children think of any places where salt is used to melt snow and ice. (Gritter lorries on roads.) Discuss briefly how crevasses can form on mountains in real life and be hazardous to

mountaineers.

Lesson Objectives Children will investigate how salt can melt ice and use this to perform an experiment to observe changes in state. Resources trays, ice, salt, pipettes, food colouring Key Vocabulary water, freeze, snow, ice, melt, heat, solid, liquid, chemical reaction, crevasse, pipette Risk Assessments Generic Site RA. Top Tips To make the ice mountains, fill plastic cups with water & freeze overnight. Salt can irritate the skin, so provide a hand washing bowl with soapy water nearby.

EYFS Links

C&L: Answer how & why questions about their experiences PSED:Show sensitivity to others’ needs and feelings PD: Uses simple tools to effect changes to materials M: Uses everyday language associated with time L: Uses vocabulary influenced by experiences UW: Looks closely at change EAD: Uses simple tools and techniques competently and appropriately

Learning Outcomes

LA - Children know that ice melts to form water and can observe changes when salt is sprinkled on ice.

MA - Children know that ice melts to form water and can comment on changes occurring when salt is sprinkled on

ice.

HA - Children know that ice melts to form water and can understand that salt can increase this change. They observe how the ice melts and crevasses are formed.

www.outdoorlearningmadeeasy.co.uk ©

Ice Crevasses

EYFS

TOPICS

EYFSSNOW & ICE