weight/mass and temperature lessons

I need HELP! I plan math for my team and I am stumped on a good lesson to teach weight/mass and and temperature. At our school all we do with these two concepts is being able to order and compare them.

Example: They will see a picture of an ice cube, soup, and juice. Which is the hottest? or put them in order from coldest to hottest.

They need to be one day lessons for both topics. This is a concept they have been exposed to before and do not need alot of time to go over, but I seriously am drawing a blank. Can anyone help me out?