Looking at the equipment and description, what kinds of hazards could happen in this practical?
We need to write a hypothesis for this practical - this is a prediction about what we think will happen.
Example: If Miss Bryant tries several chocolates, she will like Dairy Milk the best.
If we try several materials to keep water water, the best material will be......

The independent variable is the
The dependent variable is the
The dependent variable is the

Which material had the largest temperature change?
Which material had the smallest temperature change?
Which material was the best insulator?