Lemon Volcano

Offline warm up

 

Which is the best invisible ink? Write 3 messages using milk, lemon juice, and vinegar. Allow to dry. Heat up the paper with a blow dryer to see message appear.

 

Online warm up

 

Play a coding game at https://hourofcode.com/uk/learn

 

 

Main challenge - Make a Lemon Volcano!

 

What you need

 

A lemon

A pan or tray
Knife (and an adult to help)

Spoon

Bicarbonate of soda (baking soda)

Food colouring

 

There isn’t much explanation from me needed for this one team – watch the video below to find out how to create a lemon volcano. Send me your pics!

 

https://www.youtube.com/watch?time_continue=18&v=CPOKDru-2ug&feature=emb_logo