8th Midterm Exam Review

Organize these options into the right categories

Groups:

(a) Elements

,

(b) Compounds

• Ag

• O

• cannot be broken down

• represented by a symbol

• CO

• He

• AlO

• represented by a chemical formula

• H2O

• 1 atom

• broken down by chemical reaction

• 2 or more atoms

Tags

NGSS.MS-PS1-1

Label the atom

c

d

e

f

b

a

Neutron

Nucleus

Electron Cloud

Valence Electron

Electron Shell

Proton

Tags

NGSS.MS-PS1-1

Match the following for the periodic table

Groups:

(a) Groups

,

(b) Periods

• Same # electrons shells

• Columns

• Same # valence Electrons

• Rows

Organize these options into the right categories for Mixtures

Groups:

(a) Homogeneous

,

(b) Heterogeneous

,

(c) Alloys

• alloys

• Brass

• transparent

• opaque

• cereal

• Bronze

• trail mix

• different elements

• Solutions

• salt water

• evenly distributed

• steel

• lemonade

Using the chemical formula 2He₄CO, how many of each element do you have?

• 8 Helium

  2 Carbon

  2 Oxygen

• 2 Helium

  4 Carbon

  1 Oxygen

• 8 Helium

  4 Carbon

  2 Oxygen

• 2 Helium

  2 Carbon

  2 Oxygen

Tags

NGSS.MS-PS1-1

Which of the following examples would be using the Law of Motion for Acceleration?

• You have to leave a lot of room in front of an 18-wheeler so it has time to stop

• A satellite moving around earth will continue to orbit earth

• When I hit a ball with a bat, the bat hits the ball in a reverse force

• A book sitting on a table will continue to sit until someone moves it.

Tags

NGSS.MS-PS2-2

Match the following

• Plates move away from each other

• Divergent

• Plates move toward each other

• Convergent

• Plates move side to side

• Transform

Tags

NGSS.MS-ESS2-3

Match the following

• Fault lines

• Divergent

• new crust, volcanic islands

• Convergent

• Earthquakes, mountains

• Transform

Tags

NGSS.MS-ESS2-3

Label the transverse wave

b

c

d

e

a

trough

amplitude

wavelength

crest

equilibrium position

Tags

NGSS.MS-PS4-1

The letters that show the Colors in the order of the spectrum