The physical property that makes metal pots good for cooking is

• flexibility

• electrical conductivity

• flammability

• heat conductivity

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of the following is not true about a pool of water and a piece of ice?

• They have the same composition.

• They are in different states of matter.

• They have different chemical properties.

• They have different physical properties.

Tags

NGSS.MS-PS1-4

Which of the following is true about matter?

• It is a solid that takes up space.

• It has mass and takes up space.

• It has mass and is usually a liquid.

• It is always a substance.

Characteristics used to describe matter are called

• physical properties

• chemical properties

• both A and B

• neither A nor B

A balloon filled with air does not rise as high as a balloon filled with helium. What does this tell you about the density of helium?

• Helium is more dense than air.

• Helium is less dense than air.

• The two gases have the same density.

• When heated, helium becomes more dense.

The amount of matter in an object is a measure of its

• volume

• density

• weight

• mass

The formula for calculating density is

• Mass × Volume

• Mass × Weight

• Mass/ Volume

• Mass/ Weight

Which of the following statements about the mass of an object is correct?

• Mass changes with location.

• Mass remains constant.

• Mass changes with altitude.

• Mass changes with gravity.

Tags

NGSS.MS-PS1-5

Anything that has mass and takes up space is called

• matter.

• energy.

• heterogeneous.

• homogeneous.

Tags

NGSS.MS-PS1-5

What holds atoms together in a molecule?

• density

• gravity

• physical bonds

• chemical bonds