5.2.2 Properties of Matter

Color, odor, density, specific heat and boiling point are examples of:

• A. chemical properties of matter.

• B. physical properties of matter.

• C. physical changes in matter.

• D. chemical changes in matter.

Which statement is true for all objects?

• All objects are shiny.

• All objects are hard.

• All objects are rough.

• All objects have mass.

Students are gathering materials and building an electrical circuit. Which material will allow electricity to flow between the battery and the light bulb?

• copper wire

• wooden rod

• cotton string

• rubber tube

Sharpening a pencil and tearing paper are examples of physical changes. Which statement describes why these are physical changes?

• A. There is a change in how the objects are used.

• B. There is a change in the appearance of the objects.

• C. There is a change in the materials from which the objects are made.

• D. There is a change in both the appearance of the objects and the materials from which they are made.

The picture below shows four parts of a wooden pencil. Which part of the pencil is the best conductor of electricity?

• metal band

• plastic grip

• rubber eraser

• wood body

Tags

NGSS.MS-PS2-3

Tom has three objects that are the same shape and size. Tom puts the three objects in a beaker of water. He observes that X floats, but Y and Z both sink. What can he tell about the weight of object X compared to Y and Z?

• A. X is lighter than Y or Z.

• B. X is heavier than Y or Z.

• C. X is lighter than Y and heavier than Z.

• D. X is heavier than Y and lighter than Z.

Which of these properties changes when the piece of paper is cut as shown above?

• its color

• its total weight

• its shape

• its state of matter

If cans of diet and regular cola are placed in a tub of water, the can of diet cola will float while the can of regular cola will sink. Which of the following best explains why this occurs?

• A. Diet cola has a higher pH than regular cola.

• B. Diet cola has a higher boiling point than regular cola.

• C. Diet cola has a lower density than regular cola.

• D. Diet cola has lower heat capacity than regular cola.

Which of the following properties best describes a material’s ability to resist scratching?

• weight

• flexibility

• length

• hardness

The picture below shows a mineral sample being tested with a metal file. Which property of a mineral is most likely tested in this way?

• color

• hardness

• luster

• streak