gator science

active adventures in lower school science

Ice Water Balloons help teach about matter

on April 23, 2013

The 3rd grade students made some observations about the properties of a large ball of ice we made from a water balloon stored in the freezer.   We used a flashlight to find the different cracks, frost, and bubbles inside the ice ball.  We added salt to the top of the ice ball.  We added food coloring to see the melting of the ice down the sides of the ball.  We found that metal paper clips made holes in the ice, but wooden toothpicks did not.  We sank the ice ball and water and watched it submerge.  The warm water and salt made the ice ball melt faster.

We asked questions about water and ice.  We tried to answer some of these questions generated from the lab activity.

How does ice freeze?

How does ice melt?

What makes the salt melt the ice?

What does the ice remain submerged in the water and only the top of the ball can be seen on the surface?

Is there air bubbles inside the ice?

Why does the ice ball frost on the outside?

Here are some students at work in the lab:

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One response to “Ice Water Balloons help teach about matter

  1. Deitch, Andrew says:

    Thanks, Mr. DelDuca,

    These posts are great! Would you mind adding my wife, Jodi (copied), to the list? Thanks.

    Andy Deitch

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