Review: Particles of Matter

What is the smallest unit of matter?

• Molecules

• Cells

• Planets

• Atoms

Tags

NGSS.MS-PS1-1

Name the three states of matter.

• solid, liquid, gas

• plasma

• solidus

• vapor

How do chemical properties of matter differ from physical properties?

• Chemical properties are observable, while physical properties are not

• Chemical properties involve changes in state, while physical properties do not

• Chemical properties are affected by temperature, while physical properties are not

• Chemical properties involve the ability of a substance to undergo chemical reactions and form new substances, while physical properties are characteristics that can be observed or measured without changing the substance's composition.

Give an example of a chemical property of matter.

• Conductivity

• Melting point

• Flammability

• Density

What is the difference between an element and a compound?

• An element can be broken down into simpler substances, whereas a compound cannot be broken down.

• An element consists of two or more types of atoms, whereas a compound consists of only one type of atom.

• An element consists of only one type of atom, whereas a compound consists of two or more different types of atoms bonded together.

• An element is a mixture of different atoms, whereas a compound is a pure substance.

Explain the concept of phase changes in matter.

• Phase changes occur when a substance changes its shape

• Phase changes occur when a substance gains or loses energy, causing its particles to rearrange into a different structure or state.

• Phase changes happen due to changes in color

• Phase changes are caused by the rotation of Earth

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the molecular structure of water?

• O2H

• H2O

• HO2

• H3O

Tags

NGSS.MS-PS1-1

Describe the physical properties of a solid.

• Solids have definite shape and volume, closely packed particles, fixed positions, not easily compressible, high density.

• Solids have indefinite shape and volume

• Solids have loosely packed particles

• Solids are easily compressible

Tags

NGSS.MS-PS1-4

What happens to the particles of matter during a phase change?

• Particles increase in size during a phase change.

• Particles rearrange themselves into a different structure without changing their chemical composition.

• Particles change color during a phase change.

• Particles disappear completely during a phase change.

Tags

NGSS.MS-PS1-4

How does temperature affect the state of matter?

• Temperature affects the state of matter by altering the atomic structure of particles.

• Temperature affects the state of matter by changing the kinetic energy of particles.

• Temperature affects the state of matter by reversing the direction of particle movement.

• Temperature affects the state of matter by changing the color of particles.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4