P.7.5A Vocabulary

Which of the following best describes chemical energy?

• Energy stored in chemical bonds and released through chemical reactions

• Energy that moves through space as waves

• Energy due to an object's motion

• Energy stored in the nucleus of an atom

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Why do batteries and glow sticks serve as good examples of chemical energy?

• They both use energy stored in chemical bonds that is released during a chemical reaction

• They both use energy from the sun

• They both use energy from moving water

• They both use energy from sound waves

Tags

NGSS.HS-PS1-4

Which of the following best describes a chemical property?

• A characteristic that can be observed or measured only when atoms rearrange during a chemical change

• A characteristic that can be observed without changing the substance

• The color and shape of a substance

• The temperature at which a substance melts

Tags

NGSS.MS-PS1-2

Why can a chemical property only be observed during a chemical change?

• Because atoms rearrange and form new substances

• Because the substance stays the same

• Because it only involves physical changes

• Because it is related to the size of the substance

Tags

NGSS.MS-PS1-2

Which of the following best describes the process of corrosion?

• The process of destroying a solid material by a chemical reaction

• The process of melting a solid material by heating

• The process of breaking a solid material by physical force

• The process of dissolving a solid material in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Why do the nails and screws in the image appear damaged and rusty?

• They have been exposed to a chemical reaction that caused corrosion

• They were painted with a special coating

• They were stored in a dry and clean environment

• They were made from plastic materials

Tags

NGSS.MS-PS1-2

Which of the following best describes density?

• The amount of matter in a given space or volume

• The color of an object

• The temperature of a substance

• The speed at which an object moves

If you have two cubes of the same size, but one is heavier than the other, what can you infer about their densities?

• The heavier cube has a higher density

• The lighter cube has a higher density

• Both cubes have the same density

• Density does not depend on weight

How does the arrangement of particles in a high-density object compare to a low-density object of the same size?

• The particles are packed more closely together in the high-density object

• The particles are more spread out in the high-density object

• The particles are the same distance apart in both objects

• The high-density object has fewer particles

Tags

NGSS.MS-PS1-1

Which of the following best describes a physical property?

• A characteristic that can be observed or measured without changing the substance

• A characteristic that changes the substance into a new material

• A property that only involves chemical reactions

• A property that cannot be measured

Tags

NGSS.MS-PS1-4