Students can examine snowflakes during the winter months. When it is snowing, go outside and hold out a piece of black construction paper. When a snowflake falls onto the paper, use a magnifying glass to look at the snowflake in detail. After studying the snowflake, draw what the snowflake looks like. Was each snowflake you saw really different?
If winter temperatures are lower than 10 degrees Fahrenheit, you can make frozen bubbles with your students. Making frozen bubbles can show students how a liquid can turn into a solid if temperatures are low enough. Create a bubble solution by mixing 3 cups of warm water with 1/2 cup of soap powder and 1/2 cup of granulated sugar. Blow the bubble solution through a bubble wand and watch as the bubbles freeze when they hit the open air. When the bubbles hit the ground, they may shatter if it is cold enough.
When cold weather hits, students can make a candle out of ice. Fill a sand pail with water and place an empty tin can in the center. Place a stone in the can to make it sit lower in the water, but make sure the water doesn't fill the can. Place the bucket outdoors when the temperature is below 32 degrees Fahrenheit.
Once the water has frozen completely, run hot water around the outside of the pail. This will allow you to remove the pail from the ice block. Fill the tin can with hot water, which will allow it to slip out of the ice block, leaving a hole. Place a candle into the hole, then light it to enjoy the ice candle.