Ice

Ice is the solid form of water. It is formed when water freezes at a temperature of 0 degrees Celsius (32 degrees Fahrenheit). When water reaches this temperature, its molecules slow down and form a rigid, crystalline structure, resulting in the formation of ice.

Properties of Ice

1. Transparency: Ice is transparent, allowing light to pass through it.

2. Density: Ice is less dense than liquid water, which is why it floats on water.

3. Melting Point: Ice melts into liquid water at 0 degrees Celsius (32 degrees Fahrenheit).

4. Expansion: When water freezes into ice, it expands in volume, which is why ice occupies more space than the same amount of liquid water.

Uses of Ice

1. Preservation: Ice is used to preserve food, as well as to keep drinks and perishable items cold.

2. Therapeutic Purposes: Ice packs are used to reduce swelling and alleviate pain in injuries.

3. Recreation: Ice is used for recreational activities such as ice skating, ice hockey, and curling.

Study Guide

1. What is the temperature at which water freezes to form ice?
2. What is the density of ice compared to that of liquid water?
3. How does the transparency of ice differ from that of liquid water?
4. What happens to the volume of water when it freezes into ice?
5. List three uses of ice in everyday life.