Physical Science Milestone

S8P1a A diagram of a particle is shown above. The particle is most likely _________.

• an atom

• a molecule

• a homogeneous mixture

• a heterogeneous mixture

Tags

NGSS.MS-PS1-1

An atom of the element has how many protons?

• 18

• 19

• 39

• 58

Tags

NGSS.MS-PS1-1

Which of the following could be the chemical symbol representing the element cobalt?

• co

• Co

• CO

• Cob

S8P1e In which period, or row, of the periodic table would you find this element?

• Period 2

• Period 4

• Period 6

• Period 7

Tags

NGSS.MS-PS1-1

Which type of arrangment and movement would particles of mercury display?

• Particles closely packed together and they vibrate back and forth

• Particles are spread far apart and they move quickly

• Particles are close together but they are able to slip past one another

• Particles are spread far apart and electrons are detached from atoms

Tags

NGSS.MS-PS1-4

S8P1b In which state of matter do particles spread and fill the volume of the container that holds them?

• gas

• ice

• solid

• liquid

How is plasma different from gas?

• Plasma has a definite shape, but gas does not

• Gas is hotter than plasma

• Electrons separate from atoms in plasma

• Gas has a definite volume, but plasma does not

Tags

NGSS.MS-PS1-4

A scientist performs an investigation in which thermal energy is removed from a sample of a substance. When the substance begins to change from a gas to a liquid, the scientist measures the temperature of the substance. This temperature is the substance's _______

• melting point

• freezing point

• evaporation point

• condensation point

Tags

NGSS.MS-PS1-4

What happens during a physical change?

• new substances are formed

• the identity of the substance is changed

• a chemical reaction occurs

• the form of a substance changes but not its identity

When enough heat is added to liquid water, it boils, and bubbles of water vapor rise to the surface and into the air. Which type of change is this and why?

• a chemical change because gas is produced

• a chemical change because heat is produced

• a physical change because the identity fo the substance changes

• a physical change, because the substance changes state

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4