One fun way to teach about latent heat in class is through simple experiments. Here’s how you can do it:

1. Melting Ice: Start with an easy experiment using ice.

   • First, measure out a certain amount of ice, like 100 grams.
   • Gently heat the ice and keep track of the temperature changes.
   • You can use this formula to help you understand latent heat:
     $Q = m L$
     Here, $Q$ is the heat used, $m$ is the mass (like how much ice you have), and $L$ is the latent heat for melting ice (which is about $334 \, \text{J/g}$).

2. Boiling Water: Next, let’s boil some water in a kettle.

   • Measure how much water you start with, maybe 200 grams.
   • Write down the temperature and how long it takes to boil. Then, you can calculate the energy using the same formula:
     $Q = m L$
     For water turning into vapor, $L$ is about $2260 \, \text{J/g}$.

These experiments are a great way to show what latent heat means!