This afternoon we experimented with ice. First Miss Williams showed us an ice cube in a glass bowl of water and compared this to how icebergs float in the sea. We learnt that the force in water pushes objects including icebergs up and we also learnt a little bit about gravity pulling objects down. We started to think about what makes ice melt. We shared some ideas:

• Ice might melt if we run it under the tap. Shakeel
• We could use hot boiling water to make it melt. Llukan
• If you run it in your hands it might melt. Harley

Miss Williams warmed her hand on the radiator and then held the ice cube. We could see it was melting quickly because water was dripping off her hand!

We decided to find out where in our classroom was the best place for melting ice.
Row 1 put their ice on the radiator.
Row 2 put their ice outside.
Row 3 put their ice on the shelf.
Row 4 left their ice on the table.
Row 5 put their ice in the cupboard.

We predicted row 1’s would melt the fastest. Some of us thought the slowest place to melt ice would be in the cupboard and some of us thought it would be outside. We knew we had to keep our test fair so we made sure every table had the same amount of ice and that we started our experiments at the same time.

We observed our ice every 5 minutes and this is what we found out:
The radiator is the quickest way to melt ice because it was the warmest place.
Outside was the best place to put ice to stop it from melting.

We checked them at the very end of the day and found that row one’s had been in the warmest place in the classroom and only 3 ice cubes were left.