Q2 Benchmark Review- Winter Extra Credit

Which of the following correctly describes the particles in a solid?

• Particles are spread out and move freely.

• Particles are tightly packed and vibrate in place.

• Particles are in random motion but are evenly spaced.

• Particles are fixed in one position and do not move.

In which state of matter do particles have the most freedom to move?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

What happens to the motion of particles when a substance changes from a liquid to a gas?

• The particles slow down.

• The particles move faster and spread out.

• The particles stay in place.

• The particles move closer together.

Tags

NGSS.MS-PS1-4

Which of the following best describes a compound?

• A substance made of only one type of atom.

• A substance formed when atoms of different elements combine.

• A mixture of two or more substances that can be separated by physical means.

• A solid that does not dissolve in liquid.

How many elements are in the periodic table?

• Over 100

• 50

• 120

• 60

The elements in a column (group) of the periodic table have similar

• Atomic numbers.

• Chemical properties.

• Mass numbers.

• Valence electrons.

Elements are arranged in the periodic table by increasing

• Mass.

• Atomic number.

• Neutron count.

• Electron configuration.

What is the smallest unit of an element that retains its properties?

• Atom

• Neutron

• Electron

• Molecule

Which particles are found in the nucleus of an atom?

• Protons and electrons

• Protons and neutrons

• Electrons and neutrons

• Protons, neutrons, and electrons

What is the charge of an electron?

• Positive

• Negative

• Neutral

• Cannot be determined

Tags

NGSS.MS-PS2-3