According to the graph, adding salt to water, increases its freezing point.

• true

• false

Tags

NGSS.MS-PS1-2

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

True or false water is a polar molecule? 

• True 
• False 

Tags

NGSS.HS-PS1-3

The attraction that causes water and other liquids to form drops is called ________________. This is also water’s ability to be attracted to other water molecules.

• adhesion
• capillary action
• cohesion
• surface tension

Why does water move from the roots to the leaves of plants?

• Water is pushed by solutes
• Capillary action pulls the water molecules like a chain
• Water is pulled by gravity
• Water’s surface tension causes it to “pull” towards the leaves

The substance that gets dissolved is called solvent.
True or False?

• True.
• False.

Type of mixture in which all substances are evenly distributed is a?

• Solution
• Solute
• Solvent

Describe COHESION.

• Water molecules attracted to other substances.

• Water molecules climbing upwards against the force of gravity.

• Water molecules dissolving many substances because of its polarity.

• Water molecules attracted to other water molecules.

Describe SURFACE TENSION.

• Water molecules climbing upwards against the force of gravity.

• Water molecules dissolving many substances because of its polarity.

• Measure of how difficult it is to break the surface of a liquid.

• Water molecules attracted to other substances.