6.P.2 Properties & States of Matter (snet)

At what temperature is water MOST likely to be in vapor form?

• –10°C
• 20°C
• 90°C
• 120°C

The metal lid on a glass jar is hard to open, so it is held under warm, running water. What causes the jar to open easily after it was held under the water?

• The water increased the pressure under the lid.
• The jar shrunk with the warm water.
• The water acted as a lubricant between the glass and the metal.
• The metal lid expanded under warm water

 The drawing shows a cube and a pyramid. Why would the objects MOST likely have different weights?

• They have different shapes.
• They have different masses.
•  They have different dimensions.
• They have different surface areas.

Paul and Karen were studying physical and chemical properties of matter. They determined that the mass of a sample was 50 grams. Which sentence BEST states how mass describes matter?

• The mass of a substance is a way to measure the amount of matter it contains.
•  Mass is a way to measure the force of gravity on a substance.
• The mass of a substance may change, based on its location.
•  Mass is a chemical property of a substance.

 Which substance will retain the largest amount of energy from the Sun?

• concrete
• sand
• grass
• water

Which describes a property of all elements?

• All elements are metals
• All elements have six electrons.
• All elements are pure substances.
• All elements exist in the solid phase.

When the wax from a candle drips, the wax has reached

• its boiling point
• its melting point.
•  its point of vaporization.
•  its point of condensation.

An iceberg is shown in the illustration below. Why does the iceberg float instead of sinking to the bottom of the ocean?

• The water is more dense than the ice.
• The ice weighs less than the water.
• The ice has a greater salt concentration than the water
•  The water has currents that force the ice upward.

Which list contains only objects made up of atoms?

• steel, water, sand, dolphin
• light, rock, apple, squirrel
• palm tree, electricity, salt, air
• paper, vinegar, heat, helium

 The smallest particle of an element is

• an atom
• a mixture
• a molecule
• a compound