Question

1. give an example of each of three unusual properties of water.

Explanation:

Water has several unique properties. For density, it is less dense as a solid (ice) than as a liquid, which is unusual as most substances are denser in solid - state. High specific heat capacity means it can absorb a large amount of heat before its temperature rises, regulating climate near large bodies of water. High surface tension allows small insects like water striders to walk on its surface due to hydrogen bonding between water molecules.

Answer:

1. Density: Ice (solid water) is less dense than liquid water. For example, ice floats on water in a glass.
2. Specific heat capacity: It takes a lot of heat to raise the temperature of water. Bodies of water like lakes take a long time to heat up in summer.
3. Surface tension: Water striders can walk on water because of its high surface tension created by hydrogen - bonding between water molecules.