Properties of Water

What is the only substance on Earth that occurs naturally in solid, liquid, and gas forms?

• Oxygen

• Hydrogen

• Water

• Carbon

Why do scientists get excited when they find water on other planets?

• Because water is essential for life

• Because water is a rare substance

• Because water can be used as fuel

• Because water is a powerful solvent

What is the attraction between two like things called?

• Cohesion

• Adhesion

• Polarity

• Surface tension

What property of water allows bugs and some animals to walk on its surface?

• Cohesion

• Adhesion

• Surface tension

• Polarity

What type of substances can be dissolved in water?

• Hydrophobic

• Non-polar

• Ionic

• Hydrophilic

What happens when a substance cannot break the cohesive forces of water?

• It dissolves in water

• It becomes hydrophilic

• It evaporates

• It becomes hydrophobic

Why is it important that solid water (ice) floats?

• It prevents aquatic ecosystems from being disrupted

• It allows for the formation of land

• It regulates the temperature and climate of the planet

• It prevents water from freezing

What property of water allows it to hold on to heat?

• Heat capacity

• Surface tension

• Cohesion

• Adhesion

What happens when water evaporates from the skin?

• It cools the body down

• It heats the body up

• It causes sweating

• It increases body temperature

What is the term for a substance that is fearful of water?

• Hydrophobic

• Non-polar

• Ionic

• Hydrophilic