Physics - Phase transitions

In this MEL Academy lesson your child will:

  • learn the nature of phase transitions
  • make the water boil with their bare hands (totally safe!)
  • melt the ice without heat

Lesson time

11:00am   PST (San Francisco, Seattle, ...)
12:00pm   MST (Phoenix, Denver, ...)
1:00pm   CST (Chicago, Houston, ...)
2:00pm   EST (New York, Toronto, ...)
7:00pm   GMT (London, ...)

Lesson duration: 45-55 minutes.

Prepare in advance

In this lesson, we will conduct "Heatless water boiling and ice melting" DIY experiments. Prepare in advance household materials shown below.

DIY Materials

  hot water from tap/kettle (not boiling!)
  measuring syringe (e.g. from baby medicine bottle like Calpol) 50ml
  sticky dots (for worksheet)
  ice cubes (4-5)
  towel to dry your hands
  glass or jar


Please, download and print this worksheet in advance. You’ll need to refer to it during the lesson.


This lesson is presented by Mark Maclaine:

Mark Maclaine

Mark has been an educator for 20 years and has taught more than 20,000 hours of one-on-one lessons to over 1200 students. He initially struggled in school as the academic study didn’t come naturally to him. What was a weakness has become one of his greatest strengths - finding he is able to connect with students who are themselves struggling. Using a set of skills developed over the past two decades and his RELATE Teaching Method, Mark has become one of the best-known educators in the world. He is passionate about his work and is committed to transforming the education system so it works for everyone.