Last week was a very cold week. It was 0* F and we couldn't go outside for recess. But that was okay because we did some cold weather science work.
What we know:
We know that things freeze in a freezer
You can make ice in a freezer.
Lakes freeze when it is cold.
What we wonder:
Can we make ice outside?
What can we put the water in?
We found containers to put water in. We even used a Bilibo. Mrs. Knee had some balloons. We know about water balloons and we wondered if the water would freeze inside the balloon. We filled two balloons. We put yellow color in one balloon and left one plain. We wondered what would happen if we colored the water. We put things in the water and wondered what would happen. We put in glitter, spider rings, foam shapes, paper clips, and even peppermint candy. The candy turned the water pink and green.
Then we put all the containers outside. It was very cold outside.The water in the trays began to freeze and we saw crystals on top of the water.
We went to music and when we came back we checked outside.We had ice!
The balloons were hard but we could hear water inside when Mrs. Knee shook them. We wanted to see inside the balloon. Mrs. Knee cut off the balloon. We noticed:
The glitter was stuck into the ice
The spider rings were stuck.
The colored water froze and so did the clear.
Everything was hard and cold and shaped like the containers.
A ball of ice shaped like a balloon
A hole in the top of the ice
Water was inside the ice ball.
One was yellow and the other was clear
The ice was thin.
The water came out of the hole and now the ice looked like a bowl.
We wanted to make more ice balloons and let all the water freeze. Mrs. Knee filled more balloons and we put different colors in the water.
We left the balloons outside all day and all night so they could get hard. The next day we brought them inside and Mrs. Knee cut open the balloons. Some ice balloons were cracked in half. some had big cracks.
The ice balloons were melting inside. We know that salt makes ice melt on the road. We wondered what salt would do to our ice balloons. We hoped they would not melt away.
The salt made lines on the ice.
We saw spikey line things inside the ice.
The ice looked pretty.
The towel on the table was getting wet from the ice. The ice was melting.
Our hands got wet.
We wonder what the spikey line things are in the ice. We wonder why the ice balloons had cracks. What do you think?
This is what we did with our ice balloons.