When water freezes, the H20 molecules go further apart leaving pockets of air in between. When it thaws, the molecules move closer. Even though ice is physically larger than water, it actually has less H20 molecules!

For extra scie

Name
Aaron
Age
9
Experiment Title
Water and Ice – Does ice have more or less volume than water?
What was the experiment about?
When you put ice and water in a container, does the water volume increase or decrease when the ice melts?
What was your hypothesis?
Because water gets bigger when it freezes, the water will decrease in volume when the ice melts.
What materials did you use?
A graduated cylinder
Crushed ice
water
Which safety precautions were necessary?
None needed
What steps did you take to conduct your experiment?
1: I filled about half the cylinder with crushed ice.
2: I filled the cylinder with water until it hit the 100 ml mark.
3: I waited for the ice to melt.
4: I checked if the water was higher or lower than 100 ml
What was the conclusion of the experiment?
The ice had less volume because there were only 98 ml of water left
when the ice melted.
How much did you enjoy doing the experiment?
Selected Value: 8 (0 min / 10 max)
Explain the science of what happened.
When water freezes, the H20 molecules go further apart leaving pockets of air in between. When it thaws, the molecules move closer. Even though ice is physically larger than water, it actually has less H20 molecules!For extra science and a really funny video that explains this, go here:
https://www.youtube.com/watch?v=T4GCShGvw-M
How much did you learn?
Selected Value: 8 (0 min / 10 max)
Lab Report: Water and Ice – Does ice have more or less volume than water?