Polar molecules have unequal sharing of _____ among atoms.

• protons

• electrons

• neutrons

• monomers

Which picture best represents a water molecule?

• a

• b

• c

• d

Tags

NGSS.MS-PS1-1

What allows one water molecule to stick to another water molecule?

• Covalent bond

• Hydrogen bond

• Ionic bond

• Oxygen bond

Which term is defined as water molecules sticking to other substances?

• Adhesion

• Polarity

• Cohesion

• Capillarity

What happens when water freezes?

• It expands and becomes more dense, resulting in floating ice.

• It expands and becomes more dense, resulting in sinking ice.

• It expands and becomes less dense, resulting in sinking ice.

• It expands and becomes less dense, resulting in floating ice.

Tags

NGSS.MS-PS1-4

How does cohesion and adhesion benefit a plant?

• It allows carbon dioxide to travel through the xylem of a plant, from the roots to a leaf.

• It allows oxygen to travel through the phloem of a plant, from the roots to a leaf.

• It allows water to travel through the xylem of a plant, from a leaf to the roots.

• It allows water to travel through the xylem of a plant, from the roots to a leaf.

Water has a high specific heat. What does this mean?

• It resists changing its temperature.

• It evaporates quickly.

• It changes temperature quickly.

• It is an excellent solvent.

Tags

NGSS.MS-PS3-3

How does too much heat harm a body?

• It can make blood flow too quickly.

• It can damage enzymes.

• It can make white blood cells overactive.

• It can make the nervous system sensitive to pain.

Tags

NGSS.HS-LS1-3