Practice STAAR -- Review

Which of the following subatomic particles is found the farthest from the center of the atom?

• A neutral particle that is found in the electron cloud

• A negative particle that is found in the nucleus

• A positive particle that is found in the nucleus

• A negative particle that is found in the electron cloud

The galaxies pictured would best be described as--

• barred galaxies.

• spiral galaxies.

• irregular galaxies.

• symmetrical galaxies.

• elliptical galaxies.

In which region of the periodic table would most of the elements be described as dull, not very reactive, non-metals?

• 1

• 2

• 3

• 4

In which direction are groups on the periodic table?

• Horizontal rows (left to right)

• Vertical Columns (up to down)

• Diagonal Line (from one corner to the other)

• There are no such things as groups on the periodic table.

In which direction are periods on the periodic table?

• Horizontal Rows (left to right)

• Vertical Columns (up to down)

• Diagonal Line (one corner to the other)

• There are no such things as periods on the periodic table.

What is similar about elements in a single group on the periodic table?

• The number of valence electrons, chemical properties, and reactivity.

• The number of energy levels (electron clouds/shells).

• The number of protons, physical properties, and flammability.

• The temperature, energy, frequency, and wavelength.

What is similar about elements in a single period on the periodic table?

• The number of valence electrons, chemical properties, and reactivity.

• The number of energy levels (electron clouds/shells).

• The number of protons, physical properties, and flammability.

• The temperature, energy, frequency, and wavelength.

According to the balanced equation, 2S + 3O₂ --> 2SO₃, how many sulfur (S) atoms are in the products only?

• 1

• 2

• 4

• 6

Tags

NGSS.MS-PS1-1

During which phase does the moon receive sunlight only on the side facing away from earth (i.e, when the part that we do not see is lit)?

• Full Moon

• New Moon

• Waning Gibbous

• Waxing Gibbous

Tags

NGSS.MS-ESS1-1

Which of the following best explains why seasons occur and change?

• The earth is tilted and rotates on its axis.

• The earth is tilted and revolves around the Sun.

• The Earth is closer to the Sun in summer and farther away in winter.

• The earth rotates on its axis and revolves around the Sun.

Tags

NGSS.MS-ESS1-1