Front

What property of water allows ice to float on it?

Back

Ice is less dense than liquid water.

Front

Why does ice have a lower density than liquid water?

Back

As water freezes, the molecules move farther apart, decreasing its density.

Front

What allows water striders to walk on water?

Back

They are light enough not to break the hydrogen bonds holding the water molecules together.

Front

How does temperature affect the rate of solute dissolution in water?

Back

Increasing the temperature increases the rate of dissolution.

Front

What is the dependent variable in an experiment comparing the driving abilities of different age groups?

Back

The number of accidents.

Front

Define cohesion in the context of water properties.

Back

Cohesion is the attraction between water molecules due to hydrogen bonding.

Front

Define adhesion in the context of water properties.

Back

Adhesion is the attraction between water molecules and other substances.

Front

What is surface tension and how is it related to water?

Back

Surface tension is the cohesive force at the surface of water that allows it to resist external force.

Front

Explain why water is considered a polar molecule.

Back

Water has a partial positive charge on one side and a partial negative charge on the other, due to its bent shape and unequal sharing of electrons.

Front

What is the significance of water's high specific heat?

Back

It allows water to absorb and release large amounts of heat without significant temperature changes, stabilizing climates.